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Contains:  Great Nebula in Andromeda, M 110, M 31, M 32, NGC 205, NGC 221, NGC 224, The star νAnd
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M31 Andromeda Galaxy (280mm), 


M31 Andromeda Galaxy (280mm)
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M31 Andromeda Galaxy (280mm)

Technical card

Dates:July 30, 2016

Frames: 56x180" ISO1600

Integration: 2.8 hours

Darks: ~20

Bias: ~42

Avg. Moon age: 25.98 days

Avg. Moon phase: 13.61%

Temperature: 16.00

Basic astrometry details job: 1171549

RA center: 0h 42' 40"

DEC center: +41° 15' 50"

Pixel scale: 3.127 arcsec/pixel

Orientation: -19.451 degrees

Field radius: 1.742 degrees

Resolution: 3365x2181

Locations: Derendingen 454m, Solothurn, SO, Switzerland


First night using Dithering with the MGEN.
Stacking only the lights dissapointed me. Good, I did some darks and bias :-)

280mm @ f/5.6

65 subs total. Minus 5 subs with airplanes/satellites, minus 4 subs at the end of the session, because I lost the guide star which resulted immediately in star trails due to the PE of my Star Adventurer and probably inaccurate polar alignment.
All other subs were perfect :-)

Image C rotated and cropped to 3389x2197
Image D+E color balance, enhanced saturation


License: None (All rights reserved)


  • M31 Andromeda Galaxy (280mm), 


  • M31 Andromeda Galaxy (280mm), 


  • M31 Andromeda Galaxy (280mm), 


  • M31 Andromeda Galaxy (280mm), 


  • Final
    M31 Andromeda Galaxy (280mm), 



Sky plot

Sky plot


M31 Andromeda Galaxy (280mm),