Celestial hemisphere:  Northern  ·  Constellation: Cancer (Cnc)  ·  Contains:  Beehive  ·  M 44  ·  NGC 2632  ·  Praesepe Cluster
M44, the Beehive Cluster, BrettWaller
M44, the Beehive Cluster
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M44, the Beehive Cluster

M44, the Beehive Cluster, BrettWaller
M44, the Beehive Cluster
Powered byPixInsight

M44, the Beehive Cluster

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Description

The open cluster M44 is today knows as the Beehive, but to the Greeks and Romans it was Praesepe, the manger, and gamma and delta Cancri were known as the Aselli, the asses or donkeys feeding there. Although not resolved by the human eye, nevertheless M44 is one of the largest and brightest open clusters with a collective visual magnitude of 3.1. At a distance of only 525 light years, it is "close" in terms of galactic distance, and also quite old, with an estimated age of 700 million years. With the same space velocity, direction and age as the nearby Hyades cluster, the two may be related.

M44 is a Trumpler Type II 2 m open cluster of approximately 50 stars, the brightest of which shines at m. 6.3. The yellow-orange giants of spectral class K0 III contrast markedly with the more numerous and bluish A-class stars. Spanning 95' of arc, M44 is three times the diameter of the full moon, a fact not appreciated except under dark skies or with binoculars.

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M44, the Beehive Cluster, BrettWaller