In a message dated 9/24/2003 2:47:01 PM Central Daylight Time, astro_ml@virgilio.it writes:
Dear Friends,
I don't know if somebody else posted this question, but could you help me to understand which is the minimum level of the SNR value acceptable to perform photometric investigation on a stellar source? It depends from the background? With which relationship?
Thank you very much,
Massimiliano Martignoni
Massimiliano:
There is a good discussion of SNR in the AAVSO CCD observers manual at http://vsnet.aavso.org/observing/programs/ccd/manual/ . This should get you started.
Regards,
Doug West
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