Celestron CGEM Review- Part 3

CGEM Review- Polar Alignment
Tuesday, 06 October, 2009 17:18 Written by Ray Shore 32 Comments

Part 3 of my review covers polar alignment of the CGEM. I actually used two different methods. First, I just had to try the new “All-Star” polar alignment routine that Celestron has been touting. Then, I fine-tuned it with a standard drift align. To get set up, the polar axis of the CGEM must be pointed close [...]

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Celestron CGEM Review- Part 2

CGEM Review- Goto
Monday, 28 September, 2009 06:07 Written by Ray Shore 34 Comments

This is the second in a series of reviews for my new CGEM mount from Orion Telescopes and Binoculars. This review covers the first night out with the CGEM. It was mostly a test of the goto functionality of the telescope. I recived the CGEM on Monday September 14th, 2009 but didn’t get a chance [...]

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Celestron CGEM Review- Part 1

CGEM Review- Final Assembly
Saturday, 19 September, 2009 21:02 Written by Ray Shore 32 Comments

This is the first of a series of reviews planned for my new Celestron CGEM mount. I had my eye on the CGEM ever since it was first announced by Celestron. Some of the attractive features were its payload, Permanent Periodic Error Correction (PEC), new All-star polar alignment, and its ability to track well past [...]

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Jupiter’s Changing Elevation

Credit: Radio Jove Project Team
Friday, 28 August, 2009 18:47 Written by Ray Shore 3 Comments

If you are a planetary astrophotographer in the northern hemisphere, you have probably been frustrated with your attempts to acquire nicely detailed images of Jupiter in the last couple of years. Even if you obtained perfect telescope collimation, allowed your scope to reach thermal equilibrium, achieved critical focus, imaged during the best seeing conditions, etc., chances [...]

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Celestron EdgeHD Preview Video

Wednesday, 26 August, 2009 19:10 Written by AstroPhotography Tonight 0 Comments

You may have heard about a new and exciting product coming on the market from Celestron. It’s called the EdgeHD aplanatic Schmidt telescope.  According to Celestron, this scope is “designed to produce aberration-free images across a wide visual and photographic field of view”. In fact, the EdgeHD performance is being compared to that of an astrograph when [...]

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