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M81 / NGC 3031 (Bode's Galaxy) in Hydrogen-Alpha no stars, Derek Spratt

M81 / NGC 3031 (Bode's Galaxy) in Hydrogen-Alpha no stars

Getting plate-solving status, please wait...
M81 / NGC 3031 (Bode's Galaxy) in Hydrogen-Alpha no stars, Derek Spratt

M81 / NGC 3031 (Bode's Galaxy) in Hydrogen-Alpha no stars

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Description

Can you spot the other 13 galaxies hidden in this image (plus  Holmberg IX, a dwarf irregular galaxy and a satellite of M81)?  I tried to keep the amount of processing down so as to not make the target too brittle/artificial looking - it is a beautiful and similarly sized companion to our Milky Way galaxy, 12M LY away from earth.  I will be imaging its tidally interacting partner, M82 using a CDK24 very soon.

There are 4 versions of this image:

     LRGB: https://www.astrobin.com/351jl6/
     LRGB+Ha: https://www.astrobin.com/ekyxu8/
     Ha only with stars: https://www.astrobin.com/4547w3/
     Ha only no stars: https://www.astrobin.com/2ar5nu/

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M81 / NGC 3031 (Bode's Galaxy) in Hydrogen-Alpha no stars, Derek Spratt