The Horse head Nebula

Horsehead Nebula
The Horsehead Nebula in HaRGB

A famous, indeed iconic nebula in the constellation Orion, The Horsehead was not even discovered until 1888 with the advent of astro photography.  It is very faint to see visually with a telescope.

The image above was captured with my TEC 140 refractor and Atik 460 CCD camera with Astrodon RGB and Ha(3nm) filters. It contains a total of 120 minutes of Ha data and 45 minutes each of RGB data, everything binned 1×1 with 5 minutes exposures.

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