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


            Jim Coughlan
M31 First LRGB

M31 First LRGB

Technical card

Resolution: 2639x2113 job: 781776

RA center: 10.677 degrees

DEC center: 41.281 degrees

Pixel scale: 1.763 arcsec/pixel

Orientation: -90.930 degrees

Field radius: 0.828 degrees

Data source: Backyard


While I look at some orthognality issues with the 383L+ I thought I would give my new Atik 460 mono its first light as well as my first go at LRGB imaging (historically only NB, mono or OSC camera for broadband).

It was also the first time I managed to capture all the image filters and flats all in one night, which was a nice surprise.

Details are:

FSQ106ED @f/5 with Atik 460 EX mono, Loadstar/OAG. Captured in Maxim DL5 and processed in PS3CSE. Calibrated with bias and flats, no darks (not dithered).

L:80 mins Red:30mins G:25 minutes B:30minutes all in 5 minutes subs and all bin x 1. Total 2 hours 45 minutes.

I know it was a little ambitious try to fit M31 on a 460 chip but at least most of it is there.



Jim Coughlan
License: None (All rights reserved)

Sky plot

Sky plot


M31 First LRGB, 


            Jim Coughlan