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Contains:  M 82, NGC 3034, M 81, Bode's nebulae, NGC 3031
Getting plate-solving status, please wait...
M81 and M82 - Boad's Nebula, 


            Jonathan W MacCollum
M81 and M82 - Boad's Nebula

M81 and M82 - Boad's Nebula

Technical card

Imaging telescope or lens:Orion 203/1000 f/4.9

Imaging camera:ZWO ASI071MC Pro

Mount:Celestron CGEM

Guiding telescope or lens:ZWO OAG

Guiding camera:ZWO ASI 178MM

Software:StarNet++ Starnet ++PixInsight PinInsight 1.8.5Isbeorn N.I.N.A.PHD 2

Accessory:Skywatcher 2" Coma Corrector f/4

Resolution: 4891x3220

Dates:April 22, 2019April 28, 2019

Frames: 228x60" (gain: 90.00) -10C bin 1x1

Integration: 3.8 hours

Darks: ~60

Flats: ~30

Flat darks: ~30

Avg. Moon age: 20.76 days

Avg. Moon phase: 62.11%

Bortle Dark-Sky Scale: 4.00 job: 2736802

RA center: 148.888 degrees

DEC center: 69.328 degrees

Pixel scale: 0.983 arcsec/pixel

Orientation: 262.939 degrees

Field radius: 0.799 degrees

Data source: Backyard


First attempt doing some final post-processing using StarNet++ to remove stars (and then add them back in after processing.) Did some large scale MMT sharpening on the background regions using the starless version to attempt pushing the IFN just enough without ruining the image.



Jonathan W MacCollum
License: None (All rights reserved)


  • Final
    M81 and M82 - Boad's Nebula, 


            Jonathan W MacCollum
  • M81 and M82 - Boad's Nebula, 


            Jonathan W MacCollum
  • M81 and M82 - Boad's Nebula, 


            Jonathan W MacCollum


Starnet++ Starless Version


Pushed background sharpening... perhaps a bit too much

Sky plot

Sky plot


M81 and M82 - Boad's Nebula, 


            Jonathan W MacCollum

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