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Hi night-vision, sounds like you had a great night.
When you say the object moved when you moved the focuser, can you explain a little more clearly? Or maybe I can guess..
What scope do you have, and what type of focuser does it have?
If I had to guess, I'd say it was a dob with a rack'n'pinion focuser, and maybe the tension is too tight so when you focus, it actually shifts/wobbles the scope a little bit?
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