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Founded in 1955, Houston Astronomical Society is an active community of enthusiastic amateur and professional astronomers with over 60 years of history in the Houston area. Through education and outreach, our programs promote science literacy and astronomy awareness. We meet on the first Friday of each month at the University of Houston. Membership has a variety of benefits, including access to a secure dark site west of Houston, a telescope loaner program, and much more. Joining is simple; you can sign up online, by mail or in person at a monthly meeting.

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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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