M31 (
NGC 224, UGC 454, PGC 2557 and numerous others) is a large spiral galaxy located approximately 2.67 million light-years away (
https://iopscience.iop.org/article/10.3 ... 53/1/6/pdf) in Andromeda.
Luminance – 37x600s – 370 minutes – binned 1x1
RGB – 38:39:35x600s – 380:390:350 minutes each – binned 1x1
1490 minutes total exposure – 24 hours 50 minutes
Imaged numerous nights in the 2021 season at the
IC Astronomy Observatory (Spain) with a FLI PL16083 on a Takahashi FSQ-106EDX4 at
f/3.6 382 mm.
LRGB -
https://www.flickr.com/photos/dcrowson/ ... 1/sizes/l/
This data is from Telescope Live (
https://telescope.live/) “One-click Observations.”
Dan
