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

Getting plate-solving status, please wait...
M81 and M82 (Bode's Galaxy), Colm O'Dwyer
Powered byPixInsight

M81 and M82 (Bode's Galaxy)

Equipment

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Acquisition details

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Description

M81 and M82 captured with my Intes Mn56 Maskutov Newtonian. Once the long screws holding the focuser in place were replaced with shorter one, they did not protrude into the light path and the cut outs from stars was mostly removed.

Long time since this scope was used for imaging. No flat, no darks and no darkflats in this capture, 20 pixel dithering every 4th frame using 60 s exposures smoothed out noise and all hot pixels. Astropixel Processor light pollution removal effectively removed any vignetting and gradients.

This is 4 hours of data using a 12-bit OSC camera and no filters.

Comments

Revisions

  • M81 and M82 (Bode's Galaxy), Colm O'Dwyer
    Original
  • M81 and M82 (Bode's Galaxy), Colm O'Dwyer
    F
  • Final
    M81 and M82 (Bode's Galaxy), Colm O'Dwyer
    G

Sky plot

Sky plot

Histogram

M81 and M82 (Bode's Galaxy), Colm O'Dwyer