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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 ]
Scutum Star Cloud with open cluster Messier 11 at lower left. Technically not star clusters, star clouds are large groups of many stars within a galaxy, spread over very many light-years of space. Often they contain star clusters within them. The stars appear closely packed, but are not usually part of any structure. [17]
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 ...
The Collinder catalogue is a catalogue of 471 open clusters compiled by Swedish astronomer Per Collinder.It was published in 1931 as an appendix to Collinder's paper On structural properties of open galactic clusters and their spatial distribution.
Epsilon Tauri has a superjovian planet, which was the first planet to be discovered in any open cluster. [7] HD 285507 has a hot Jupiter, [50] K2-25 has a Neptune-sized planet, [51] and K2-136 has a system of three planets. [52] Another star, HD 283869, may also host a planet, but this has not been confirmed as only one transit has been ...
The Alpha Persei Cluster, also known as Melotte 20 or Collinder 39, is an open cluster of stars in the northern constellation of Perseus. To the naked eye, the cluster consists of several blue-hued spectral type B stars. The most luminous member is the ~2nd magnitude yellow supergiant Mirfak, also known as Alpha Persei.
NGC 7093 is an open cluster [1] located in the Cygnus constellation. It was discovered by John Herschel on September 19, 1829. [ 2 ] It is located at a distance of about 5,800 light-years from the Sun and 28,400 light-years from the Galactic Center .
The Cassiopeia-Perseus open cluster family is located 2 kpc from the Sun between the constellations of Cassiopeia and Perseus, embedded in the Perseus spiral arm (de la Fuente Marcos & de la Fuente Marcos 2009). The structure roughly defines a plane that is inclined almost 30° with respect to the plane of the Milky Way.