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Re: Photometry
Hey Tom,
But, as Arne mentions, if you keep the instrumental magnitude reduced
from the frames, you can use different reference stars till
you are blue in the face, and not have to re-reduce another frame. You
just re-calculate the color and zero point, and re-apply to the
instrumental magnitude to get your calibrated magnitude. dB's are
wonderfull for this.
Later,
Rob
On Sat, 07 Jun 2003 21:05:54 -0500
Tom Droege <tdroege2@earthlink.net> said something like:
> Amen! Brother!
>
> But we can't do it for a survey, so we have to live with
> it. Sigh! Suppose we get a good set of photometric reference stars
> sometime in the future. Then we could re-run all the data and
> possibly get a better result.
>
--
O_
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