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



    
        

            Michael S.
M81 galaxy group
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M81 galaxy group

Technical card

Imaging telescopes or lenses: Lacerta Carbon Photonewton 254/1200

Imaging cameras: NIKON D810a

Mounts: Skywatcher EQ8 Pro

Guiding telescopes or lenses: Skywatcher EvoGuide 50ED

Guiding cameras: Lacerta MGEN 3 Camera

Software: PixInsight 1.8

Accessory: GPU Pal Gyulai GPU 2" Aplanatic Coma Corrector  ·  Lacerta MGEN 3 autoguider


Dates:Feb. 12, 2021Feb. 14, 2021March 1, 2021March 2, 2021

Frames: 75x600"

Integration: 12.5 hours

Darks: ~36

Flats: ~30

Bias: ~70

Avg. Moon age: 9.68 days

Avg. Moon phase: 47.21%

Bortle Dark-Sky Scale: 5.00

Mean SQM: 20.80

Mean FWHM: 2.90

Temperature: 8.00


Basic astrometry details

Astrometry.net job: 4277980

RA center: 9h 55' 59"

DEC center: +69° 4' 8"

Pixel scale: 0.954 arcsec/pixel

Orientation: 3.036 degrees

Field radius: 0.327 degrees


Resolution: 1451x2000

Locations: My lovely garden, J-City, Burgenland, Austria

Data source: Backyard

Description

I was lucky to add some more data and therefore improve the details captured in that fine group of galaxies.
:-)
In two of those 4 nights I had good seeing with RMS values on the autoguider between 0.2 - 0.4''. The other two nights have been far worse.

Comments

Revisions

    M81 galaxy group, 



    
        

            Michael S.
    Original
  • Final
    M81 galaxy group, 



    
        

            Michael S.
    B

B

Description: Crop of M81 - Bode's Galaxy

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M81 galaxy group, 



    
        

            Michael S.