Contains: M 32, M 110, M 31
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M31 - Andromeda Nebula

Technical card

Imaging telescope or lens: Canon EF 100-400 f/4.5-5.6

Imaging camera: Canon EOS 50D

Mount: Celestron CPC 925XLT

Software: DeepSkyStacker

Resolution: 2178x1497

Dates: Aug. 19, 2012

Frames: 17x75" ISO800

Integration: 0.4 hours

Darks: ~11

Bias: ~20

Avg. Moon age: 1.91 days

Avg. Moon phase: 4.09%

Bortle Dark-Sky Scale: 3.00

Temperature: 14.00 job: 382477

Locations: Beau Regard, Gembes, Belgium


Finally an attempt to make a picture of M31 that pays off! The secret definitely is: a dark sky with as little light pollution as possible. This guy will be back on my list as soon as circumstances allow and with an equatorial mount in order to avoid the field rotation.



Koen Dierckens


M31 - Andromeda Nebula, 


        Koen Dierckens