Hemisphere:  Northern  ·  Constellation: Andromeda (And)  ·  Contains:  Andromeda Galaxy  ·  M 110  ·  M 31  ·  M 32  ·  NGC 205  ·  NGC 221  ·  NGC 224
M31 in LRGB, 



    
        

            Marc Agostini
M31 in LRGB
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M31 in LRGB

M31 in LRGB, 



    
        

            Marc Agostini
M31 in LRGB
Powered byPixInsight

M31 in LRGB

Equipment

Imaging Telescopes Or Lenses
SkyWatcher Esprit 80ED Super APO Triplet
Imaging Cameras
QHYCCD 183M
Mounts
iOptron CEM25p
Filters
Baader Planetarium B 1.25" CCD Filter · Baader Planetarium G 1.25" CCD Filter · Baader Planetarium R 1.25" CCD Filter · Baader Planetarium UV/IR-Cut 2"
Accessories
Homemade Flatfield Panel
Software
Adobe photoshop cc · Starnet++ · F.Meyer - Team free-astro siril v0.99.6
Guiding Telescopes Or Lenses
ZWO Mini Guide Scope
Guiding Cameras
Altair Astro GPCAM3 178M

Acquisition details

Dates:
Nov. 14, 2020 ·  Nov. 21, 2020
Frames:
Baader Planetarium B 1.25" CCD Filter: 25x360" (2h 30') (gain: 4.00) -10°C bin 1x1
Baader Planetarium G 1.25" CCD Filter: 26x360" (2h 36') (gain: 4.00) bin 1x1
Baader Planetarium R 1.25" CCD Filter: 11x360" (1h 6') (gain: 4.00) -10°C bin 1x1
Baader Planetarium UV/IR-Cut 2": 101x180" (5h 3') (gain: 4.00) 0°C bin 1x1
Integration:
11h 15'
Darks:
36
Flats:
62
Flat darks:
62
Avg. Moon age:
17.70 days
Avg. Moon phase:
21.87%
Bortle Dark-Sky Scale:
3.00
Temperature:
-4.67

Basic astrometry details

Astrometry.net job: 4065065

RA center: 00h42m43s.7

DEC center: +41°1612

Pixel scale: 1.202 arcsec/pixel

Orientation: 268.354 degrees

Field radius: 1.097 degrees

Resolution: 5495x3602

Locations: Balkonsternwarte, Stockach, Baden-Würtemberg, Germany

Data source: Backyard

Description

It's been quite a while since my last published image. This one has been shot on two recent nights with no (L)/little moonshine (RGB), I was very pleased to get two such nights as these are very rare where I live (autumn fog hotspot) at this time of the year. But this year I got two crisp and cold nights and the seeing was way better than usual as well! Like this I could finally collect a full LRGB dataset of M31, which always managed to evade me so far.

Pre-processing and stacking as well as RGB-combination and colour calibration in Siril, final L-RGB composition in Photoshop with the aid of Starnet++

Comments

Sky plot

Sky plot

Histogram

M31 in LRGB, 



    
        

            Marc Agostini