Hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Bode's nebulae  ·  M 81  ·  NGC 3031
M81, 



    
        

            jreese
M81
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M81

Acquisition details

Dates:
Feb. 22, 2014 ·  Feb. 28, 2014 ·  March 3, 2014
Frames:
Baader B: 10×600(1h 40′) -10°C bin 2×2
Baader G: 10×600(1h 40′) -10°C bin 2×2
Baader L: 45×600(7h 30′) -10°C bin 1×1
Baader R: 10×600(1h 40′) -10°C bin 2×2
Integration:
12h 30′
Avg. Moon age:
17.63 days
Avg. Moon phase:
19.89%

Basic astrometry details

Astrometry.net job: 197241

RA center: 09h55m40s.6

DEC center: +69°0343

Pixel scale: 1.564 arcsec/pixel

Orientation: -122.986 degrees

Field radius: 0.488 degrees

Resolution: 620x431

File size: 277.8 KB

Description

Messier 81 (also known as NGC 3031 or Bode's Galaxy) is a spiral galaxy about 12 million light-years away in the constellation Ursa Major.

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M81, 



    
        

            jreese