Cheap Criterion Telescope Online Deals

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

I'm in yr 9 and in science we were given this assignment. I have searched books and the internet but I can't find anything that I am looking for. Here's the criteria:Over the next 2 classes you are to prepare a report describing and detailing Halley's comet, Venus and the Southern Cross. You should begin by discussing the understanding we had of these features before the invention of telescopes (including any mystical or legendary attributes ascribed to them). You are then to research and describe how our knowledge of these objects has changed with the invention of simple optical telescopes. (Note: this means you are not required to discuss radioastronomy or orbital telescopes such as the Hubble Space Telescope). If anyone knows anything on this subject or any links I can follow up, it would be greatly appreciated!

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion

If a genie granted you one telescope, anything you wanted -- from a 60mm Takahashi APO to an 18inch Obsession dob, what would you choose as your one and only telescope for life? Consider your lifestyle, what you most view, and also consider portability -- if this is an important criterion.

I need a telescope which is able to reach stars.....

Please rate the following companies from first to worst in manufacturing refractors keeping in mind the following criteria: Price, Quality/Optics, Warranty, Support, Availability, Reputation.The companies include: Takahashi, Vixen, Astro-Physics, Tele Vue, William Optics.Please also justify your choices.

I recently traded with a friend for an old telescope that I thought I could fix/restore. I think it's a criterion RV-7 dynascope. The motor that turns part of it's mount is broken. When I plug it in it just hums and does nothing, also there is no way to control the motor other than plugging it in. Does anyone know how to fix the motor, or have any useful information regarding the scope?Oh. I forgot to ask. The hex screws that attach the motor box to the stand are stripped and I can't get them out. Anyone have suggestions for removal and replacement?

I've read on different sites how atmospheric conditions limit telescopes' maximal performance/magnification based on Rayleigh criterion.In telescopes' manuals are given 2 resolutions based on both standards.They are given in arc seconds.So my question is:If I know the Dawes limit ot the other can I calculate the maximal magnification based on it?I have resolution based on aperture and magnification based on aperture but such a "max reasonable magnification" is no good to me because that "reasonable" is relative.I want magnification based on resolution(arc seconds).How to calculate?

The size of the device that gathers (collects) radiation is called a telescope's:A. magnificationB. resolutionC. apertureD. focal widthE. Galilean criterion