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



    
        

            Marko Järveläinen
M81
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M81

Getting plate-solving status, please wait...
M81, 



    
        

            Marko Järveläinen
M81
Powered byPixInsight

M81

Acquisition details

Dates:
March 16, 2015
Frames:
Baader Planetarium Hydrogen Alpha : 36×1200(12h) bin 1×1
Blue: 16×500(2h 13′ 20″) bin 2×2
Custom Scientific Luminance: 70×600(11h 40′) bin 1×1
Green: 11×500(1h 31′ 40″) bin 2×2
Red: 13×500(1h 48′ 20″) bin 2×2
Integration:
29h 13′ 20″
Avg. Moon age:
25.05 days
Avg. Moon phase:
21.07%

Basic astrometry details

Astrometry.net job: 616960

RA center: 09h56m05s.8

DEC center: +69°0603

Orientation: -72.919 degrees

Field radius: 0.463 degrees

Resolution: 2686x2003

File size: 1.7 MB

Locations: Misty Valley Observatory, Mäntsälä, Finland

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M81, 



    
        

            Marko Järveläinen