Celestial hemisphere:  Northern  ·  Constellation: Auriga (Aur)  ·  Contains:  NGC 1931
NGC 1931 Open Star Cluster Nebula, AlBroxton
NGC 1931 Open Star Cluster Nebula
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NGC 1931 Open Star Cluster Nebula

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Description

NGC1931. There is a plethora of HII regions in Auriga, and this is one of the smallest. A combination of emission nebula and cluster, with a hint of blue reflection nebulosity makes it a really unique object. The star cluster, just below the red nebula is actually NGC1931, and contains the blue nebula. Its 10th magnitude and 6 arc minutes in size. The nebula is Sharpless 237, which includes the blue nebula as part of it's description. Visually in the 12.5 inch, the object appears as a nebulous star, with the "cluster" not being so obvious. The distance from earth is estimated at about 7000 light years . Discovered (Feb 4, 1793) by William Herschel

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NGC 1931 Open Star Cluster Nebula, AlBroxton

In these collections

Allen Broxton
Nebula