Asterisms – “37”, NGC 2169, Collinder 83

By: Steve Goldberg

Asterism: a grouping of stars that form a recognizable pattern.

Constellation: Orion
Right Ascension: 06 h, 08 m 25s
Declination: 13o 57’ 54”
Magnitude:  5.9
Size: 6’ (minutes)

 

 

The object NGC 2169 is an asterism that looks like the number “37”. It is easily located near the bend of Orion’s out stretched arm, above the star Betelgeuse, near star Xi 70 Ori. 2169 is officially classified as an open cluster with other catalog names of Collinder 83 (CR 83) and OCL 481 (Open Cluster).

The FOV in the second picture is from a 10” Dob with a 15mm eyepiece. A reflecting telescope gives you an upside down image.

 

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