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The open cluster Messier 6 in the constellation Scorpius is also known as the Butterfly Cluster or NGC 6405. This is a list of open clusters located in the Milky Way. An open cluster is an association of up to a few thousand stars that all formed from the same giant molecular cloud. There are over 1,000 known open clusters in the Milky Way ...
NGC 6067 is an open cluster in the constellation Norma. It is located to the north of Kappa Normae , with an angular diameter of 12 ′ . Visible to the naked eye in dark skies, [ 4 ] [ 5 ] it is best observed with binoculars or a small telescope, and a 12-inch aperture telescope will reveal about 250 stars.
Nearest globular cluster to the Earth. Also the first globular cluster known to have exoplanets (PSR B1620-26b) Messier 12: 74.4 [28] Messier 70: 68 [29] NGC 290: 66 [30] Open cluster: Messier 28: 60 [31] Globular cluster: Messier 18: 52.4 [32] Open cluster: The following notable star clusters are listed for the purpose of comparison. MGC1: 49 ...
Globular cluster masses can be determined by observing the proper motion of nearby stars influenced by the cluster [1] [2] or by estimating the cluster's relaxation time. [ 3 ] Open clusters
An open cluster is a type of star cluster made of tens to a few thousand stars that were formed from the same giant molecular cloud and have roughly the same age. More than 1,100 open clusters have been discovered within the Milky Way galaxy, and many more are thought to exist. [ 1 ]
NGC 6791 is an open star cluster in the Lyra constellation. [1] It was discovered by Friedrich August Theodor Winnecke in 1853. At roughly 8 billion years old, and with an iron to hydrogen abundance ratio that is more than twice that of the Sun, it is one of the oldest and most metal-rich clusters in the Milky Way.
NGC 2158 is an open cluster in the constellation of Gemini. It is, in angle, immediately southwest of open cluster Messier 35 , and is believed to be about 2 billion years old. [ 2 ] The two clusters are unrelated, as the subject is around 9,000 light years further away.
NGC 2477 (also known as Caldwell 71 or the Termite Hole Cluster [3]) is an open cluster in the constellation Puppis. It contains about 300 stars, [ 4 ] and was discovered by Abbé Lacaille in 1751. [ 4 ] [ 5 ] The cluster's age has been estimated at 700 million years.