The Great Nebula in Orion (M42) - a photo on Flickriver

The Great Nebula in Orion (M42) and the Running Man Nebula (NGC 1977).

The Orion Nebula (Messier 42, M42, or NGC 1976) is a diffuse nebula situated in the Milky Way Galaxy, south of Orion's Belt in the constellation of Orion. M42 is located 1344 light-years away, and is the closest region of massive star formation to Earth. The M42 nebula is estimated to be 24 light-years across. It has a mass of about 2000 times the mass of the Sun.

About this image:
This is really a "work in progress" test image, and is compiled from a combination of "One Shot Color" (OSC) DSLR RGB image data, and Hydrogen-Alpha (Ha), Oxygen III (OIII), and Sulphur II (SII) Narrowband image data (collected at several Star Parties and Astronomy weekends in the past year).

Even though the Orion Nebula is probably the first Deep Sky Object that every Astrophotographer images, it is actually a tricky nebula to photograph and process due to its wide high dynamic range of bright and faint nebulosity.

Narrowband spectral wavelengths of the light in this image:
Hydrogen-Alpha - 656.3nm
Oxygen-III - 500.7nm
Sulfur-II - 672.4nm

Visible light spectrum:
400nm - 700nm

Pre-Processing and Linear workflow in PixInsight
and FITS Liberator, and finished in Photoshop.

Astrometry Info:
Annotated Sky Chart for this image.
Center RA, Dec: 83.756, -5.378
Center RA, hms: 05h 35m 01.327s
Center Dec, dms: -05° 22' 42.324"
Size: 1.7 x 1.26 deg
Radius: 1.059 deg
Pixel scale: 3.83 arcsec/pixel
Orientation: Up is 81.6 degrees E of N
View this image in the World Wide Telescope.

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Martin
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Taken on: October 29, 2016

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Camera: Canon 60D (more info) (hide info)

Camera:	Canon 60D
Color Space:	Uncalibrated
Software:	Adobe Photoshop CS6 (Windows)
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