Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)
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Sh2-112 Emission Nebula in the Constellation of Cygnus, Phil Swift
Sh2-112 Emission Nebula in the Constellation of Cygnus
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Sh2-112 Emission Nebula in the Constellation of Cygnus

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Sh2-112 Emission Nebula in the Constellation of Cygnus, Phil Swift
Sh2-112 Emission Nebula in the Constellation of Cygnus
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Sh2-112 Emission Nebula in the Constellation of Cygnus

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Description

Sh2-112 is an emission nebula visible in the constellation Cygnus.
It is a circular HII region with an apparent size of about 15', crossed by a dark band on its western side oriented in a north-south direction. 
The star responsible for its excitation is believed to be BD+45 3216, a double blue star 9.18. 
Estimates of the distance of this star provide a value of 1740 parsecs (about 5670 light years which would place Sh2-112 in a particularly rich region of the Orion Arm of the Milky Way.
The nebula is located in a region of star formation.

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Sh2-112 Emission Nebula in the Constellation of Cygnus, Phil Swift