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Observation by Mike Greenhill-Hooper: M31

Uploaded by

Mike Greenhill-Hooper

Observer

Mike Greenhill-Hooper

Observed

2024 Jan 30 - 20:00

Uploaded

2024 Feb 04 - 15:29

Objects

The Andromeda Galaxy (M31)

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Constellation

Andromeda

Field centre

RA: 00h42m
Dec: +41°18'
Position angle: -95°30'

Field size

2°16' × 1°32'

Equipment
  • 90mm f/6 TS triplet APO with 0.8FR on NEQ6 mount
  • ASI294MMPro with LRGB and H-alpha filters
Exposure

15x60s for LRGB and 15x120s for H-alpha, gain 121, offset 10, T=-10C

Location

Miradoux, S.W. France

Target name

M31

Title

M31

About this image

After nearly 4 months with no moon-free clear skies finally managed to try out my new Triplet APO.  Pleased with the result as lots of things could have gone wrong.  Only problem was the struggle to add in H-alpha data without having access to PixInsight.

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Comments
Dr Paul Leyland
Dr Paul Leyland, 2024 Feb 04 - 19:35 UTC

AE And is just barely visible, at around V=17.5 these days. I couldn't find Var 1, so I guess the limiting magnitude is close to V=18.0.

Very good for a 90mm aperture!

I suspect that different post-processing will show more detail.

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