Beginner astrophotography

zygalski said:
Last night was a lovely clear, crisp, moon and cloud-free night.
Here's just over 3 hours of stacked 30 second exposures of the Iris Nebula and insterstellar clouds in Cepheus

Skywatcher Star Adventurer 2i Pro
Nikon D5300 (Astro modified) ISO 200
Redcat 51 (250mm f/4.9)
370 x 30 second lights
50 flats
50 biases
50 darks

View attachment 139700
Click to expand...
Haven't seen this thread before. The photos are excellent. Please could you explain what flats, biases and darks are? I'm not a photographer (y)
 
zygalski said:
Last night I managed to capture nearly 5 hours worth of data on the Heart Nebula, in Cassiopeia.

Skywatcher Star Adventurer 2i Pro
Nikon D5300 (Astro modified) ISO 200
Redcat 51 (250mm f/4.9)
391 x 45 second lights
50 flats
50 biases
50 darks
View attachment 141905
Click to expand...
You should be hunting UFOs and Aliens, because, we all want the whole truth. Bloody government isn't telling us, they're hiding all the secret UFO's and Alien's.
 
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