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


            Dan Gallo
Andromeda Galaxy (M31)
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Technical card

Imaging telescopes or lenses: Celestron Rowe-Ackermann Schmidt Astrograph 11"

Imaging cameras: ZWO ASI294MC Pro

Mounts: Losmandy G11 Gemini 2

Software: Sequence Generator Pro  ·  Lightroom  ·  PixInsight

Filters: L-Pro 2"

Dates:Sept. 1, 2019

Frames:L-Pro 2": 250x30" -15C bin 1x1

Integration: 2.1 hours

Darks: ~100

Avg. Moon age: 2.42 days

Avg. Moon phase: 6.47%

Bortle Dark-Sky Scale: 8.00

Basic astrometry details

Astrometry.net job: 2897566

RA center: 0h 42' 13"

DEC center: +41° 14' 16"

Pixel scale: 1.544 arcsec/pixel

Orientation: 177.983 degrees

Field radius: 1.063 degrees

Resolution: 2784x4100

Locations: Home, Foster City, California, United States

Data source: Backyard


I was quite surprised by how much detail I could pull out of this data from my light polluted backyard (Bortle Class 7-8). The DBE process in PixInsight really helped here!
250 light frames (30 seconds each) and 100 dark frames. No flat or bias frames were used.



Dan Gallo
License: None (All rights reserved)

Sky plot

Sky plot


Andromeda Galaxy (M31), 


            Dan Gallo

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Celestron RASA