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Contains:  Great Nebula in Andromeda, M 110, M 31, M 32, NGC 205, NGC 221, NGC 224
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M31 Andromeda Galaxy, 


M31 Andromeda Galaxy
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M31 Andromeda Galaxy

Technical card

Imaging telescopes or lenses: Skywatcher 72ED DS-PRO

Imaging cameras: Sony A5000

Mounts: SkyWatcher Star Adventuer

Software: Affinity Photo Mac  ·  Sequator

Dates:Aug. 26, 2019

Frames: 142x30"

Integration: 1.2 hours

Avg. Moon age: 25.07 days

Avg. Moon phase: 20.92%

Basic astrometry details job: 2936798

RA center: 0h 42' 40"

DEC center: +41° 11' 38"

Pixel scale: 4.052 arcsec/pixel

Orientation: 0.297 degrees

Field radius: 1.468 degrees

Resolution: 1899x1789

Data source: Backyard


Second attempt at imaging the Andromeda Galaxy with my newly acquired Skywatcher 72ED and Star Adventurer mount. Imaging from my heavily light polluted back garden (Bortle 8 skies). Finding the limits of this set up -- 30 seconds seems to be max sub length so far.

Any comments or advice always welcome.

I'm especially interested to know other people's experience with the Star Adventurer mount and/or 72ED.



License: None (All rights reserved)


  • Final
    M31 Andromeda Galaxy, 




Description: Using what is essentially a masking procedure I was able to selectively brighten M31 while leaving the background a smoother and more pleasing black. In addition, by applying a local contrast increase to the centre of the galaxy only I was able to bring out the centre detail without the grain caused by a local contrast increase across the entire image.

Sky plot

Sky plot


M31 Andromeda Galaxy,