Thread: Exposure time
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Old 25-11-2016, 07:37 PM
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Somnium (Aidan)
Aidan

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Quote:
Originally Posted by raymo View Post
At what Dec do you apply the 500 rule? At 80 Dec you can get exposures
six times longer than at 0 Dec. Imaging the few near polar galaxies you can get much longer still.
raymo
Dec is not going to mean much for me, I am imaging with a 180deg fov
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