Celestial hemisphere:  Northern  ·  Constellation: Taurus (Tau)  ·  Contains:  19 Tau)  ·  25 Tau)  ·  Barnard's Merope Nebula  ·  IC 349  ·  Maia Nebula  ·  Merope Nebula  ·  NGC 1432  ·  NGC 1435  ·  Sterope I (21 Tau)  ·  The star 18 Tau  ·  The star Alcyone (η Tau  ·  The star Asterope  ·  The star Atlas (27 Tau)  ·  The star Celaeno (16 Tau)  ·  The star Electra (17 Tau)  ·  The star Merope (23 Tau)  ·  The star Pleione (28 Tau)  ·  The star Sterope II (22 Tau)  ·  The star Taygeta (q Tau
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M45, Bart Delsaert
M45
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M45

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Description

The Pleiades, or Seven Sisters (Messier object 45 or M45), is an open star cluster containing middle-aged hot B-type stars located in the constellation of Taurus. It is among the nearest star clusters to Earth and is the cluster most obvious to the naked eye in the night sky. The cluster is dominated by hot blue and extremely luminous stars that have formed within the last 100 million years. Dust that forms a faint reflection nebulosity around the brightest stars was thought at first to be left over from the formation of the cluster, but is now known to be an unrelated dust cloud in the interstellar medium that the stars are currently passing through.

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M45, Bart Delsaert