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Old 15-03-2008, 01:16 AM
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skwinty (Steve)
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skwinty is offline
Join Date: Dec 2007
Location: Cape Town
Posts: 494
Originally Posted by jase View Post
Tip #37:

The signal to noise (S/N) ratio of a CCD image increases linearly with the square root of the exposure time. This means that quadrupling the exposure time doubles the S/N ratio. So take the longest *effective* exposure you can. Such advice applies to all CCD imaging and is especially important for narrowband imaging because of the small amount of signal passing through the filter.
Hi Jase
Thanks for tip #37
Will add to my study list.
Please feel free to suggest more as I still have a long way to go with my studies on Astronomical Imaging.
I appreciate all feedback that is constructive and helps me to get to grips with the complex issues.
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