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



    
        

            Bert Scheuneman
Messier 81
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Messier 81

Messier 81, 



    
        

            Bert Scheuneman
Messier 81
Powered byPixInsight

Messier 81

Technical card

Imaging telescopes or lenses: Boren Simon 10" f2.8 Powernewton

Imaging cameras: QSI 583 ws

Mounts: Losmandy G11

Guiding cameras: Lodestar

Focal reducers: ASA 2" x 0,73 Corrector/Reducer 2KORRR

Software: PixInsight  ·  Adobe Photoshop 6 CS  ·  StarSpikes Pro

Filters: Astrodon LRGB CCD Imaging Filters (E-Series)


Dates:Feb. 12, 2017

Frames: 164x300" (13h 40')

Integration: 13h 40'

Avg. Moon age: 16.28 days

Avg. Moon phase: 97.43%


Basic astrometry details

Astrometry.net job: 1450544

RA center: 9h 54' 45"

DEC center: +69° 9' 39"

Pixel scale: 1.441 arcsec/pixel

Orientation: 331.889 degrees

Field radius: 0.494 degrees


Resolution: 1980x1476

Comments

Sky plot

Sky plot

Histogram

Messier 81, 



    
        

            Bert Scheuneman