Quote:
Originally Posted by tonybarry
Shot noise refers to the random rate of influx of photons (e.g. from a dim star). The dimmer the star, the more the rate of incoming photons goes up and down due to random factors.
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so Shot noise just refers to the rate of incoming photons or variation in the rate, more like jitter (in networking) and has nothing to do with sky background?? why is it referred to as "noise"? sorry to detract with the basics..