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



    
        

            AstroGG
M81
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M81

M81, 



    
        

            AstroGG
M81
Powered byPixInsight

M81

Equipment

Imaging Telescopes Or Lenses
CELESTRON Edge HD 800
Imaging Cameras
Atik 460ex
Mounts
Sky-Watcher EQ8
Filters
L · R · G · B · Ha (Baader Planetarium H-Alpha Filter)
Accessories
Starlight Xpress OAG · Starlight Xpress SX USB Filter Wheel 5x2" · Celestron EdgeHD 8 0.7x Reducer
Software
PHD guiding · Photoshop CC · Nebulosity · Neat Image
Guiding Telescopes Or Lenses
CELESTRON Edge HD 800
Guiding Cameras
Starlight Xpress Lodestar-C

Acquisition details

Dates:
Jan. 28, 2018
Frames:
B: 30x120" (1h)
Baader Planetarium H-Alpha Filter: 5x600" (50')
G: 30x120" (1h)
L: 92x300" (7h 40')
R: 30x120" (1h)
Integration:
11h 30'
Avg. Moon age:
11.25 days
Avg. Moon phase:
86.63%

Basic astrometry details

Astrometry.net job: 1960861

RA center: 09h55m35s.8

DEC center: +69°0346

Pixel scale: 0.621 arcsec/pixel

Orientation: 132.156 degrees

Field radius: 0.274 degrees

Resolution: 2544x1908

Comments

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Histogram

M81, 



    
        

            AstroGG