Hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Bode's Galaxy  ·  Cigar Galaxy  ·  M 81  ·  M 82  ·  NGC 3031  ·  NGC 3034
M81 and M82, 


            Kristof Dierick
M81 and M82
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M81 and M82

Technical card

Imaging telescopes or lenses: TS Optics Photoline 102/715 Triplet

Imaging cameras: ZWO ASI1600mm-Cool

Guiding telescopes or lenses: ZWO 60/280 Guiderscope

Guiding cameras: ZWO ASI120MC

Software: PixInsight 1.8.8-6 Ripley PixInsight

Filters: Astronomik L2 Luminance 31mm  ·  Astronomik Blue 31mm  ·  Astronomik Green 31mm

Dates:March 24, 2020

Frames: 395x60"

Integration: 6.6 hours

Avg. Moon age: 0.09 days

Avg. Moon phase: 0.01%

Basic astrometry details

Astrometry.net job: 4132836

RA center: 9h 55' 3"

DEC center: +69° 20' 27"

Pixel scale: 1.096 arcsec/pixel

Orientation: 72.312 degrees

Field radius: 0.831 degrees

Resolution: 4392x3237

Locations: Backyard - Aan de kerk, Mielen-boven-Aalst, Limburg, Belgium

Data source: Backyard


Missing some clear skies for new data.... I decided to reprocess my older data of last year (March 2020) of this galaxy pair. I used PixInsight for this and I think there's more detail now and less noise.



  • M81 and M82, 


            Kristof Dierick
  • Final
    M81 and M82, 


            Kristof Dierick


Description: Performed some HDRMultiscaleTransformation in PixInsight.

Uploaded: ...

Sky plot

Sky plot


M81 and M82, 


            Kristof Dierick