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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 Andromeda Galaxy in HaLRGB, 


            Douglas J Struble
M31 Andromeda Galaxy in HaLRGB

M31 Andromeda Galaxy in HaLRGB

Technical card

Resolution: 4066x3047

Dates:Aug. 22, 2017Aug. 30, 2017Aug. 31, 2017Sept. 1, 2017

Astrnomik CLS-CCD: 1235x30" -20C bin 1x1
Astrodon Blue Tru-Balance E-Series Gen 2: 133x60" -20C bin 1x1
Astrodon Green Tru-Balance E-Series Gen 2: 101x60" -20C bin 1x1
Astrodon Ha 5nm: 64x120" (gain: 201.00) -20C bin 1x1
Astrodon Red Tru-Balance E-Series Gen 2: 103x60" -20C bin 1x1

Integration: 18.0 hours

Darks: ~50

Flats: ~50

Bias: ~250

Avg. Moon age: 7.18 days

Avg. Moon phase: 52.43%

Bortle Dark-Sky Scale: 6.00 job: 1713124

RA center: 10.655 degrees

DEC center: 41.241 degrees

Pixel scale: 2.315 arcsec/pixel

Orientation: 183.340 degrees

Field radius: 1.634 degrees

Locations: Backyard Red Zone Observatory, Taylor, MI, Michigan, United States

Data source: Backyard


What can be done in a red zone.



Douglas J Struble
License: None (All rights reserved)

Sky plot

Sky plot


M31 Andromeda Galaxy in HaLRGB, 


            Douglas J Struble