Hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Bode's Galaxy  ·  Cigar Galaxy  ·  M 81  ·  M 82  ·  NGC 3031  ·  NGC 3034  ·  NGC 3077
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M81 & M82 Widefield, 



    
        

            ThomasR
M81 & M82 Widefield
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M81 & M82 Widefield

Technical card

Imaging telescopes or lenses: TS Photoline 72mm F/6 APO

Imaging cameras: Canon EOS 60D mod

Mounts: SkyWatcher HEQ5 SynScan

Guiding telescopes or lenses: Orion Mini 50mm Guidescope

Guiding cameras: Lacerta M-Gen II

Software: Photoshop  ·  Capture One 21  ·  Pleiades PixInsight

Accessory: TS Optics PHOTOLINE APO Flattener Corrector (TSFLAT72)


Dates:Nov. 24, 2020

Frames: 211x120" ISO800

Integration: 7.0 hours

Darks: ~25

Flats: ~25

Flat darks: ~25

Avg. Moon age: 9.48 days

Avg. Moon phase: 71.61%

Bortle Dark-Sky Scale: 5.00


Basic astrometry details

Astrometry.net job: 4155437

RA center: 9h 53' 8"

DEC center: +69° 8' 13"

Pixel scale: 1.997 arcsec/pixel

Orientation: 2.187 degrees

Field radius: 1.679 degrees


Resolution: 5037x3358

Locations: Balkon, Dresden, Sachsen, Germany

Data source: Traveller

Description

This is my version of the well-known pair of galaxies M81 and M82. I did not use the light pollution filter this time. For the processing in PI I used the script collection "EZ Suite" for the first time and I reduced the halos according to a method of Nuno Pina Cabral using wavelets.

http://nunopinacphotos.blogspot.com/2016/03/how-to-remove-star-halos-using-wavelets.html

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  • M81 & M82 Widefield, 



    
        

            ThomasR
    Original
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    M81 & M82 Widefield, 



    
        

            ThomasR
    B

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M81 & M82 Widefield, 



    
        

            ThomasR