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Old 29-04-2018, 11:05 AM
Imme (Jon)
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Imme is offline
 
Join Date: Aug 2017
Location: Kyneton
Posts: 840
Quote:
Originally Posted by kosborn View Post
If I sit and watch it (instead of making tea) I see the guide star shift horizontally to the left of frame in PHD. It doesn't matter what the orientation of the telescope is, it always shifts horizontally to the left (at the same y pixel value). Usually PHD flashes red, beeps and reports lost star and stops guiding although sometimes it seems to try to guide on something spurious until the camera gets back in sync and the guide star goes back to its proper position. If I stop PHD looping as soon as it loses the star and then immediately start looping again, the guide star returns to its normal position and I can continue guiding, usually without any blur in the sub. I must admit, I don't usually get crazy correction attempts like the one I posted but I usually catch it early.

You are lucky if yours is working well. Are you using Windows7 or a Mac? https://www.cloudynights.com/topic/5...-and-asi120mc/

Kevin
I’m on windows 10.

Definitely sounds like a mechanical issue to me, not camera
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