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Contains:  Bode's Galaxy, Bode's galaxy, Cigar Galaxy, Cigar galaxy, M 81, M 82, M81, M82, NGC 3031, NGC 3034, NGC 3077, NGC3077
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M81 & M82 with faint IFN, 


            Roland Schliessus
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M81 & M82 with faint IFN

Technical card

Dates:March 15, 2020

Frames: 100x180" ISO800 -1C bin 1x1

Integration: 5.0 hours

Darks: ~50

Flats: ~50

Bias: ~50

Avg. Moon age: 21.22 days

Avg. Moon phase: 59.84%

Bortle Dark-Sky Scale: 4.00 job: 3399591

RA center: 9h 55' 29"

DEC center: +69° 23' 50"

Pixel scale: 2.385 arcsec/pixel

Orientation: 3.287 degrees

Field radius: 1.357 degrees

Resolution: 3450x2209

Locations: Terrassensternwarte, Ostrach, Baden-Württemberg, Germany

Data source: Backyard


- very hard imaging and processing with this reserve setup with my very old objective (year 1980) Beroflex 500mm f/8 ... "Wundertüte"
- Constructed and 3D printed assembly



Roland Schliessus
License: None (All rights reserved)


  • Final
    M81 & M82 with faint IFN, 


            Roland Schliessus
  • M81 & M82 with faint IFN, 


            Roland Schliessus

Sky plot

Sky plot


M81 & M82 with faint IFN, 


            Roland Schliessus