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


            Bernd Neumann
Bode`s Nebula M81
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Bode`s Nebula M81

Technical card

Imaging telescopes or lenses: Celestron C9.25 2350mm F10

Imaging cameras: ALCCD8L

Mounts: EQ 6 Pro EQ6 PRO Synscan

Guiding telescopes or lenses: TS OAG 9mm

Guiding cameras: Atik 16IC

Software: Fitswork 4  ·  PHD2.2

Dates:March 12, 2015

Frames: 4x900"

Integration: 1.0 hours

Avg. Moon age: 20.93 days

Avg. Moon phase: 62.78%

Basic astrometry details

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 degrees

Resolution: 620x411

Locations: Heimsternwarte, Hilden, NRW, Germany


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.


Sky plot

Sky plot


Bode`s Nebula M81, 


            Bernd Neumann