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Contains:  Andromeda galaxy, Great Nebula in Andromeda, M 110, M 31, M 32, M110, M31, M32, NGC 205, NGC 221, NGC 224, NGC206
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M31 - Andromeda (HaLRGB), 


            Chris Massa
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M31 - Andromeda (HaLRGB)

Technical card

Dates:Oct. 23, 2017Oct. 24, 2017Oct. 25, 2017Oct. 26, 2017Oct. 27, 2017

Baader Blue 36 mm: 22x300" -20C bin 1x1
Baader Ha 7nm 36mm: 9x1800" -20C bin 1x1
Baader Luminance 36 mm: 46x60" -20C bin 1x1
Baader Red 36 mm: 11x300" -20C bin 1x1
Astrodon GREEN 36mm - Gen2 E-Series Tru-Balance: 25x300" -20C bin 1x1
Astrodon LUM 36mm - Gen2 E -Series Tru-Balance: 45x300" -20C bin 1x1

Integration: 13.8 hours

Avg. Moon age: 5.22 days

Avg. Moon phase: 28.57% job: 3247339

RA center: 0h 42' 45"

DEC center: +41° 13' 2"

Pixel scale: 1.316 arcsec/pixel

Orientation: 91.419 degrees

Field radius: 1.491 degrees

Resolution: 6522x4902

Data source: Backyard


It's been quite some time since I've imaged M31. This was also a test of my mount and was done unguided, except for the long Ha exposures. I had some problems with the red and could only use half of my subframes. Processed in PI with 2x drizzle. The last time I imaged this was with a Canon 550D DSLR.



Chris Massa
License: None (All rights reserved)


  • M31 - Andromeda (HaLRGB), 


            Chris Massa
  • Final
    M31 - Andromeda (HaLRGB), 


            Chris Massa

Sky plot

Sky plot


M31 - Andromeda (HaLRGB), 


            Chris Massa