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The Pleiades (/ ˈ p l iː. ə d iː z, ˈ p l eɪ-, ˈ p l aɪ-/), [8] [9] also known as Seven Sisters and Messier 45, is an asterism of an open star cluster containing young B-type stars in the northwest of the constellation Taurus.
An online star chart; Monthly sky maps for every location on Earth Archived 2007-09-13 at the Wayback Machine; The Evening Sky Map – Free monthly star charts and calendar for northern hemisphere, southern hemisphere, and equatorial sky watchers. Sky Map Online – Free interactive star chart (showing over 1.2 million stars up to magnitude 12)
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.
There these seven stars formed the star cluster known thereafter as the Pleiades. The Greek poet Hesiod mentions the Pleiades several times in his Works and Days. As the Pleiades are primarily winter stars, they feature prominently in the ancient agricultural calendar. Here is a bit of advice from Hesiod:
The determiner glyph for "constellation" or "star" in these lists is MUL (𒀯), originally a pictograph of three stars, as it were a triplet of AN signs; e. g. the Pleiades are referred to as a "star cluster" or "star of stars" in the lists, written as MUL.MUL, or MUL MUL (𒀯𒀯).
Mosaic of 30 open clusters discovered from VISTA's data. The open clusters were hidden by the dust in the Milky Way. [6] Credit ESO.. The prominent open cluster the Pleiades, in the constellation Taurus, has been recognized as a group of stars since antiquity, while the Hyades (which also form part of Taurus) is one of the oldest open clusters.
The New General Catalogue of Nebulae and Clusters of Stars (abbreviated NGC) is an astronomical catalogue of deep-sky objects compiled by John Louis Emil Dreyer in 1888. The NGC contains 7,840 objects, including galaxies, star clusters and emission nebulae.
IC 2602 (also known as the Southern Pleiades, Theta Carinae Cluster, or Caldwell 102) [4] is an open cluster in the constellation Carina.Discovered by Abbe Lacaille in 1751 from South Africa, [5] the cluster is easily visible to the unaided eye, and is one of the nearest star clusters, centred about 149 parsecs (486 light-years) away from Earth.