Astro Tutorial #1.17: Stacking - Exposure Time & SNR

A very good science-talk from the author of "SharpCap":
   • Deep Sky Astrophotography With CMOS C...  

A real world comparison of different exposure times from galactichunter:
   • Short vs Long exposures for Astrophot...  

Crude code of my python scripts:
https://catchingphotons.de/webspace/a...


Hey folks,

today’s video is about the term stacking.
We will cover the basic principles of stacking – including the basic math and statistics behind it. Why are some images noisy and others are not? Thereby we will talk about random photons, the law of large numbers, distribution patterns….

How long should the total integrated exposure time be? And how long a single light frame?

For visual representation I wrote a python-script creating a virtual sensor with virtual photons representing virtual physical objects.
I took the idea from Astrostace:    / @astrostace  
Definitely check out her channel!

I hope you enjoy this video! Clear skies everyone!
Chris

Additional links:

http://www.threehillsobservatory.co.u...



Hashtags:
#stacking
#SNR
#exposure_time

Copyright links:
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