[AZ-Observing] Re: Flats and Bias
- From: Stan Gorodenski <stan_gorodenski@xxxxxxxxxxxxx>
- To: az-observing@xxxxxxxxxxxxx
- Date: Sun, 15 Jul 2007 11:04:37 -0700
It just occurred to me, why not take a flat during the daylight? One
would have to reduce the light coming in, maybe with a mylar solar
filter. Does the sun in the sky create too much of a flux gradient
across the chip no matter where you might take a flat in the sky? There
obviously is a problem with this method since it does not seem to be
mentioned in the sources I read.
Stan
Jeff Hopkins wrote:
>Hello Jimmy,
>
>You should have bought a copy of "AutoStar CCD Photometry."
>http://www.hposoft.com/ASCCD.html
>
>
>
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