Celestial hemisphere:  Northern  ·  Constellation: Auriga (Aur)  ·  Contains:  M 37  ·  NGC 2099
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Messier 37/NGC 2099 Open Cluster in Auriga, Sigga
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Messier 37/NGC 2099 Open Cluster in Auriga

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Messier 37/NGC 2099 Open Cluster in Auriga, Sigga
Powered byPixInsight

Messier 37/NGC 2099 Open Cluster in Auriga

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Description

Messier 37 (also known as M37 or NGC 2099) is the richest open cluster in the constellation Auriga. It is the brightest of three open clusters in Auriga and was discovered by the Italian astronomer Giovanni Battista Hodierna before 1654. M37 was missed by French astronomer Guillaume Le Gentil when he rediscovered M36 and M38 in 1749. French astronomer Charles Messier independently rediscovered M37 in September 1764 but all three clusters were recorded by Hodierna. It is classified as Trumpler type I,1,r or I,2,r.

M37 is located in the antipodal direction, opposite from the Galactic Center as seen from Earth.

Estimates of its age range from 347 million to 550[3] million years. It has 1,500 times the mass of the Sun and contains over 500 identified stars, with roughly 150 stars brighter than magnitude 12.5.

--Messier-Objects.com

More:

Messier37 - Wikipedia

Messier37 - Astropixels.com

Messier37 - SEDS

This is image #41 in long term project to photograph the complete Messier catalog. Happy with this one, again is not most spectacular object but interesting object, nice colours variation and in a nice star field. RGB each image 300 seconds.Was done with very bright moon but I now have better system to determine azimuth and elevation of moon as related to object and seem to have quite better results.

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Messier 37/NGC 2099 Open Cluster in Auriga, Sigga