Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  Bode's Galaxy  ·  Cigar Galaxy  ·  M 81  ·  M 82  ·  NGC 3031  ·  NGC 3034  ·  NGC 3077
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M81 and M82, Stephen Jennette
M81 and M82
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M81 and M82

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Description

This is a stack of 12 x 500 sec RBG exposures with 6 x 600 sec Hydrogen-alpha giving 2.65 hours total exposure.

The hydrogen-alpha data has been blended into the Red channel. The same data is also blended into the Luminance channel creating a Ha-HaRRGB image.

The RGB data was captured using an Equinox 80, TRF-2008 and QHY8L. The H-a data was captured with the same scope, an Atik 428mono and Baader 7m hydrogen-alpha filter.

M81 (left) and M82 (right). M81 lies about 12 million light years from our galaxyM82 is one of two galaxies strongly influenced gravitationally by M81. The other, NGC 3077, is located above and to the left of M81

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M81 and M82, Stephen Jennette