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joeidaho
newbie
Reged: 11/11/06
Posts: 4
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My RA circle always seems a few degrees off after when trying to find another object after calibrating on a known star.I wonder if this is because my polar alignment is off. I don't have the polar scope,and just try to roughly align looking through the hole in the mount. Will a polar scope improve my setting circle accuracy? I really want to use the circles!
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DCS
scholastic sledgehammer
Reged: 12/03/05
Posts: 753
Loc: Cypress, Texas
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I'd recommend the GM-8 polar alignment scope. It works very well - great alignment every time in only a few minutes.
FWIW - there are polar aligment scopes out there that are absolutely worthless.
-Pete
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Carl M
scholastic sledgehammer
Reged: 02/21/07
Posts: 907
Loc: Vermont, USA
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Agreed. I have one for mine ( GM-8 w/gemini). It was extremely easiy to install. I made a dimmer/battery box for the illuminator as it is too bright out of the box. I can't speak for everyone else, but mine did not require any initial adjustment. I have dead-on GOTO's, excellent tracking, and easy setup no matter where I am.
I also have a CG5-GT and a polar scope for it. By comparison, the polar scope for the CG5 is useless, hard to align and more importantly, keep aligned.
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Carl
JStar 12" Truss Dob w/Swayze Mirror
StellarVue SV50 "Little Rascal"
SV102ED
SV80ED(NHNG )
SV70ED
LS60THa/B1200
AT66 (Chrome)
G-11 Gemini, GM-8
AT, WO, and TV eyepieces
Lake Runnemede Observatory
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