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The cluster lies between the constellation Crux and the larger but fainter "False Cross" asterism. The 4th-magnitude Cepheid variable star x Carinae appears near the southeast fringes, but it lies between the Sun and the cluster and is not a member of the cluster. The cluster was first catalogued by Nicolas Louis de Lacaille in 1752. [18]
NGC 7789 (also known as Caroline's Rose, [4] Caroline's Haystack, [5] or the White Rose Cluster) is an open cluster in Cassiopeia that was discovered by Caroline Herschel in 1783. Her brother William Herschel included it in his catalog as H VI.30.
The properties of this cluster suggest that it may have been acquired during the merger of a dwarf galaxy, of which Omega Centauri forms the surviving nucleus. For Messier 56, the abundance of elements other than hydrogen and helium, what astronomers term the metallicity , has a very low value of [Fe/H] = –2.00 dex which is 1 ⁄ 100 of the ...
NGC 6355 is a globular cluster located in the constellation Ophiuchus. [5] It is at a distance of 28,000 light years away from Earth, and is currently part of the Galactic bulge. [3] NGC was discovered by the German-born British astronomer William Herschel on 24 May 1784. [6]
See also: Open cluster, List of open clusters NGC 457 (also designated Caldwell 13 , and known as the Dragonfly Cluster , E.T. Cluster , Owl Cluster , Kachina Doll Cluster or Phi Cassiopeiae Cluster ) [ 2 ] is an open star cluster in the constellation Cassiopeia .
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The cluster CL0024+17 is a cluster of galaxies located in Pisces, and about 4 billion light years distant. Cl 0024+17 is allowing astronomers to probe the distribution of dark matter in space . The blue streaks near the center of the image are the smeared images of very distant galaxies that are not part of not much but a little tiny part the ...
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.