Observation by Mike Greenhill-Hooper: M31 close up in black & white

Uploaded by

Mike Greenhill-Hooper

Observer

Mike Greenhill-Hooper

Observed

2026 Oct 15 - 22:00

Uploaded

2026 Oct 30 - 15:40

Objects

The Andromeda Galaxy (M31)

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Constellation

Andromeda

Field centre

RA: 00^h43^m
Dec: +41°21'
Position angle: +89°36'

Field size

0°26' × 0°17'

Equipment

Telescope: 20" f/4 Obsession Dobsonian; Paracorr coma corrector
ASI294MMPro camera with L filter

Exposure

300x1s live stack, gain 450, T=1C

Location

Miradoux, S.W. France

Target name

M31

Title

M31 close up in black & white

About this image

At the end of a long and rather frustrating night battling with my equipment and chasing very faint targets, I decided to finish off with a shot of M31, or at least part of it. It's just one 5 minute live stack with a luminance filter, but I was amazed by the detail I could pick up. Image processed with Affinity Photo (tone mapping revealed a lot of subtle detail), GraXpert, Siril and BlurXterminator.

Files associated with this observation

M31 32 bit 300 frame stack GraXpert stretch denoise BlurX M GREENHILL-HOOPER 151026.jpg (1.6 MB)

Like this image

Callum Potter, Dominic Ford

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