Celestial hemisphere:  Northern  ·  Constellation: Orion (Ori)  ·  Contains:  24 Ori)  ·  37 Ori)  ·  39 Ori)  ·  40 Ori  ·  Heka (λ Ori  ·  Part of the constellation Orion (Ori)  ·  The star 131 Tau  ·  The star 133 Tau  ·  The star 32 Ori  ·  The star 35 Ori  ·  The star Bellatrix (γ Ori  ·  The star Heka (φ1 Ori  ·  The star Meissa  ·  The star φ2 Ori
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Angelfish Nebula the head of Orion in narrowband, David Elmore
Angelfish Nebula the head of Orion in narrowband
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Angelfish Nebula the head of Orion in narrowband

Getting plate-solving status, please wait...
Angelfish Nebula the head of Orion in narrowband, David Elmore
Angelfish Nebula the head of Orion in narrowband
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Angelfish Nebula the head of Orion in narrowband

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The Angelfish Nebula appears to be the head of Orion.  This is part of the giant Orion Molecular Cloud at a distance of about 1400 light years.  Hydrogen in the cloud is stimulated into emission by young hot blue stars notably Meissa, lambda Orionis.  Red is Hydrogen alpha plus Hydrogen beta.  Green and blue are Oxygen III.  Sulphur II is added equally to red, green, and blue.

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Angelfish Nebula the head of Orion in narrowband, David Elmore