Quote:
Originally Posted by Greg Bock
Guys,
Magnitude estimate from a 5 minute subframe that was used in my 17 minute image last night, 5/11/12.
Using SkyX and CCDSoft, checked with MaximDL, I get 13.1 to 13.4 using UCAC3 reference stars.
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Hi guys,
I reviewed my magnitude estimates in my image of 5 November as suggested. I used a 30 second subframe and the AAVSO chart for that area as suggested by Terry, and now I get mag 12.5, not 13.1 to 13.4...seems to be more agreeable using that technique with a subframe where the pixels are still in a linear range.
thanks for the help guys.