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Hemisphere:  Northern  ·  Contains:  Andromeda Galaxy  ·  M 110  ·  M 31  ·  M 32  ·  NGC 205  ·  NGC 221  ·  NGC 224  ·  The star νAnd
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M31 Andromeda Galaxy (400mm), 


M31 Andromeda Galaxy (400mm)
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M31 Andromeda Galaxy (400mm)

Technical card

Imaging telescopes or lenses: Canon EF 400mm f/5.6L USM

Imaging cameras: Canon EOS 70Da

Mounts: SkyWatcher Star Adventurer

Guiding telescopes or lenses: Orion Mini 50mm Guide Scope

Guiding cameras: Lacerta MGEN 2

Software: Pleiades Astrophoto PixInsight  ·  Adobe Lightroom

Filters: Astronomik CLS-CCD Clip Filter

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

Basic astrometry details job: 3475379

RA center: 0h 42' 41"

DEC center: +41° 16' 33"

Pixel scale: 2.152 arcsec/pixel

Orientation: 201.076 degrees

Field radius: 1.882 degrees

Resolution: 5320x3370

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), 


  • Final
    M31 Andromeda Galaxy (400mm), 


  • M31 Andromeda Galaxy (400mm), 




Description: more saturation

Sky plot

Sky plot


M31 Andromeda Galaxy (400mm),