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Old 04-12-2024, 09:45 AM
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AstroJunk (Jonathan)
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Join Date: Jan 2006
Location: Moonee Beach
Posts: 1,945
Any equatorial mount is fine for EAA, the key is not the mount but the polar alignment. I had a permanently mounted scope with a clear south which I polar aligned to arc second accuracy using Sharp Cap and it would track unguided for hours.

Strain wave mounts by their nature have more periodic error than a conventional GEM, but short exposures will compensate for that.

Of course, with the equipment you are using, which is not far of the kit I use, a small investment in a guide scope and camera will allow for much longer sessions without the need for such precise polar alignment.


Quote:
Originally Posted by DarthRiker View Post
I have a C8 SCT with Celestron f/6.3 Reducer, ASI294MC Pro camera and HEQ5 Pro mount. All controlled with an ASIAIR Plus 32GB.

At the moment I can do unguided EAA with no more than 30s exposures for at most 30 minutes duration in Live Mode for Live Stacking.

Would I be able to use the Skywatcher Wave 150i to do unguided EAA?

I have been told that I should be able to to unguided EAA with the AM5N with my setup - I'm just wondering if I can do that with other strain wave/harmonic mounts like the Skywatcher Wave 150i and the iOptron HAE29 (non-EC version).
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