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Contains:  M 81, Bode's nebulae, NGC 3031
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Bode`s Nebula M81, 





    
        

            Bernd Neumann
Bode`s Nebula M81

Bode`s Nebula M81

Technical card

Imaging telescope or lens:Celestron C9.25 2350mm F10

Imaging camera:ALCCD8L

Mount:EQ 6 Pro EQ6 PRO Synscan

Guiding telescope or lens:TS OAG 9mm

Guiding camera:Atik 16IC

Software:Fitswork 4PHD2.2

Resolution: 3040x2016

Dates:March 12, 2015

Frames: 4x900"

Integration: 1.0 hours

Avg. Moon age: 20.93 days

Avg. Moon phase: 62.78%

Astrometry.net job: 823697

RA center: 9h 53' 43"

DEC center: +69° 2' 6"

Pixel scale: 1.476 arcsec/pixel

Orientation: -28.909 degrees

Field radius: 0.748

Locations: Heimsternwarte, Hilden, NRW, Germany

Description

Discovered by Johann Elert Bode in 1774.

Messier 81 (M81, NGC 3031) in Ursa Major is one of the most conspicuous galaxies in the sky, and one of the nearest beyond the Local Group. It is a conspicuous spiral galaxy.

M81 is one of the easiest and most rewarding galaxies to observe for the amateur astronomer on the northern hemisphere, because with its total visual brightness of about 6.8 magnitudes it can be found with small instruments.

Comments

Author

B_Neumann
Bernd Neumann
License: None (All rights reserved)
500
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Bode`s Nebula M81, 





    
        

            Bernd Neumann