NGC 2169
Open cluster in the constellation Orion
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NGC 2169 is an open cluster in the Orion constellation. It was possibly discovered by Giovanni Batista Hodierna before 1654 and discovered by William Herschel on October 15, 1784.[1] NGC 2169 is at a distance of about 3,600 light years away from Earth. It is nicknamed "The '37' Cluster" due to its striking resemblance to the numerals "37".[2] The cluster is composed of components Collinder 38, a I3pn open cluster,[3] and Collinder 83, a III3m open cluster.
| NGC 2169 | |
|---|---|
Image showing the 37 asterism. | |
| Observation data (J2000 epoch) | |
| Right ascension | 06h 8.4m |
| Declination | +13° 57′ |
| Distance | 3.6 kly |
| Apparent magnitude (V) | 5.9 |
| Apparent dimensions (V) | 7′ |
| Physical characteristics | |
| Other designations | 37 Cluster, Cr 38/83 |
| Associations | |
| Constellation | Orion |
