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



    
        

            guillau012
M81
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M81

M81, 



    
        

            guillau012
M81
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M81

Technical card

Imaging telescopes or lenses: Skywatcher 150/750 Explorer BD

Imaging cameras: Atik 414ex

Mounts: Skywatcher HEQ5 PRO (belt modification)

Guiding telescopes or lenses: Kepler Lunette Guide 60/240

Guiding cameras: ZWO ASI120MM-S

Focal reducers: Baader MPCC coma corrector

Software: APT - Astro Photography Tool Astro Photography tool

Filters: Baader Planetarium L 1.25"

Accessory: Orion ROUE A FILTRES 5x1.25"


Dates:Dec. 12, 2017

Frames: 92x180" (4h 36')

Integration: 4h 36'

Avg. Moon age: 24.26 days

Avg. Moon phase: 28.29%


Basic astrometry details

Astrometry.net job: 1857919

RA center: 09h55m26s

DEC center: +69°0227

Pixel scale: 1.763 arcsec/pixel

Orientation: 203.380 degrees

Field radius: 0.401 degrees


Resolution: 1339x941

Comments

Revisions

  • Final
    M81, 



    
        

            guillau012
    Original
  • M81, 



    
        

            guillau012
    B
  • M81, 



    
        

            guillau012
    C

B

Description: couleur

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M81, 



    
        

            guillau012