15251RE: [ccd-newastro] First calibrated image
- May 1, 2003First, that's a really nice M101. Details are sharp, stars are really
round - a neat effort. The flat fielding must be good, too, because I see no
evidence of any flaws.
author of The New CCD Astronomy
From: Frank Barrett [mailto:frankb02@...]
Sent: Wednesday, April 30, 2003 4:08 PM
Subject: [ccd-newastro] First calibrated image
Here's my first attempt at a fully calibrated image with my new
light box. In keeping with the recent theme it is, of course, of
I'm just a bit concerned over the noise in this image. I would have
thought that an hour long exposure would not have resulted in so
much noise in the faint arms. Am I overstretching this with curves?
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