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Contains:  M 31, Great Nebula in Andromeda, NGC 224, M 32, NGC 221, M 110, NGC 205, The star νAnd, The star 32And
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The Andromeda Galaxy - M31, 


            Henrique Silva
The Andromeda Galaxy - M31

The Andromeda Galaxy - M31

Technical card

Imaging telescope or lens:AstroTech AT72ED

Mount:Celestron CGEM

Guiding telescope or lens:ZWO 60/280 Guiderscope

Guiding camera:ZWO ASI 120 MM

Focal reducer:TS-Flattener

Software:PixInsight 1.8DeepSky Stacker 3.3.4O'Telescope BackyardEOSPHD2 Guiding

Resolution: 3749x2667

Dates:Nov. 18, 2017

10x180" ISO1600
30x180" ISO3200

Integration: 2.0 hours

Avg. Moon age: 0.01 days

Avg. Moon phase: 0.00%

Bortle Dark-Sky Scale: 4.00 job: 2516660

RA center: 10.721 degrees

DEC center: 41.225 degrees

Pixel scale: 3.761 arcsec/pixel

Orientation: 262.979 degrees

Field radius: 2.403 degrees

Locations: Friend observatory site, Branca, Coruche, Portugal

Data source: Backyard


The Andromeda Galaxy, also known as Messier 31 or NGC224, is a spiral galaxy approximately 2.5 million light-years from Earth, and the nearest major galaxy to the Milky Way. Its name stems from the area of the sky in which it appears, the constellation of Andromeda.

M: Celestron CGEM & Orion SSAG
T: AT72ED & TS Flatenner
- 30x180s ISO3200
- 10x180s ISO1600

Software: BEOS; DSS; PI; PS



Henrique Silva
License: None (All rights reserved)

Sky plot

Sky plot


The Andromeda Galaxy - M31, 


            Henrique Silva

Made possible by

O'Telescope BackyardEOS