Multiple night rotation question

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Sean Mc avatar
Hey all. This might be a silly or simple question. I’m looking at imaging during the summer months with very short nights and lots of cloud cover. It seem like I might be able to get 3 hours of data tonight under the 90% moon. Then maybe wait a week to get more clear skies. Maybe longer :/

So the earth moves in space over that period. Does that mean that I will have to rotate my camera to follow the sky rotation to keep a relatively similar orientation if I want to combine data without too much cropping, or is the relative motion negligible?  Does the date simply determine how high the target is in the sky at a given time?  This is with an AM5 equatorial mount. 

thx!
Engaging
Ashraf AbuSara avatar
The orientation of the target from your location should not change if you continue to image from the same location with an Equatorial mount. The only thing that will change is where it will be located in your night sky at the same time that evening. No need to worry about camera rotation if nothing else changes in your setup. You can always verify by plate solving one of your prior images and going to the target and see if there is any minor rotation in your imaging train.
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