Improving signal/Noise

Astrophotography: Tips & Techniques

Astrophotography: Stacking Up Your Signal

The secret to stacking images in astrophotography is increasing signal rather than just increasing the number of exposures.

Noise to clean

Imaging Foundations with Richard Wright

An Astrophotographer's Gentle Introduction to Noise

You don't need a PhD to understand noise in astronomical images — here's an introduction to the various sources of noise in astrophotography and how to combat them.

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