Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Bode's nebulae  ·  M 81  ·  M 82  ·  NGC 3031  ·  NGC 3034  ·  NGC 3077
M81 and M82 crop, Marc Agostini
M81 and M82 crop
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M81 and M82 crop

M81 and M82 crop, Marc Agostini
M81 and M82 crop
Powered byPixInsight

M81 and M82 crop

Equipment

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Acquisition details

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Description

Since the weather has been pretty cloudy the last few weeks, I gave processing this data from march another try. I decided to include a lot of the Background, since there are so many tiny and dim galaxies to be found there.

Stacked in DSS, prestretched with Fitswork, finished in Photoshop and color calibrated with Regim.

I used Trevor Jones' per Channel treatment for the first time and it really improved the result by miles; the backgroud doesn't get too blotchy with colour noise and i also realized the star forming regions and dust lanes were much more prominent in the blue channel, so I created a tone map from it and applied it to the RGB. This really brought a lot of details into the galaxies.

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