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Contains:  M 31, Great Nebula in Andromeda, NGC 224, M 32, NGC 221, M 110, NGC 205, The star νAnd
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M31 Andromeda Galaxy (400mm), 


M31 Andromeda Galaxy (400mm)

M31 Andromeda Galaxy (400mm)

Technical card

Resolution: 5320x3370

Dates:July 29, 2017July 31, 2017

Frames:Astronomik CLS-CCD Clip Filter: 113x120" ISO1600

Integration: 3.8 hours

Darks: ~33

Bias: ~44

Avg. Moon age: 7.25 days

Avg. Moon phase: 48.61%

Bortle Dark-Sky Scale: 6.00 job: 1685347

RA center: 10.673 degrees

DEC center: 41.276 degrees

Pixel scale: 2.152 arcsec/pixel

Orientation: -21.848 degrees

Field radius: 1.882 degrees

Locations: Derendingen 454m, Solothurn, SO, Switzerland


This is my second M31 Andromeda attempt at 400mm fl. Now focused with the Bahtinov mask, modified DSLR and more acquired lights compared to last year (2016: 130x90s, Now: 113x120s). Only 2 nights. It was the max I could reach due to the bad wheater... really bad this year :-(

And I tried to process more subtle this time (not that much color correction).

I like the result :-)

Last year image:



License: None (All rights reserved)


  • M31 Andromeda Galaxy (400mm), 


  • M31 Andromeda Galaxy (400mm), 


  • Final
    M31 Andromeda Galaxy (400mm), 




more saturation

Sky plot

Sky plot


M31 Andromeda Galaxy (400mm),