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ST4 Img Exp Calculator Question
There is a field "Expose for" in the Exposure Calculator.
My example is running for m-108 galaxy.
What do I have to choose? Target Object or galaxy?
The results are not the same in the calculation of the exposure time.
My question: Whats the difference?
Thanks for your help, I found no answer in the help file.

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ST4 Img Exp Calculator Question - by lewis - 2019-05-30, 02:56 PM

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