Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Bode's nebulae  ·  M 81  ·  NGC 3031
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M 81 H-alpha Only, Eric Coles (coles44)
M 81 H-alpha Only
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M 81 H-alpha Only

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Description

This is the H-alpha image that will be used to enhance the LRGB image of M-81 when it is complete. The background in this image is brought down near zero so as not to influence the background tone in the final RGB image. The objective is to just add some color to the emission nebula in the galaxy.

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M 81 H-alpha Only, Eric Coles (coles44)