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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 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.
Andrews / Lindsay (AL) (open star clusters) (for example: Andrews-Lindsay 1 at 13:15:16 / -65°55'12" in Musca) (AL 1 is also known as vdB-Hagen 144) Annis (?) APM — Automatic Plate Measuring machine; Apriamashvili (open star clusters) (the open star cluster Basel 1 at about one degree WNW of Messier 11 is also known as the Apriamashvili cluster)
NGC 869 (also known as h Persei) is an open cluster located 7460 light years away in the constellation of Perseus. [2] The cluster is about 14 million years old. [2] It is the westernmost of the Double Cluster with NGC 884.
Examples of astronomical objects include planetary systems, star clusters, nebulae, and galaxies, while asteroids, moons, planets, and stars are astronomical bodies. A comet may be identified as both a body and an object: It is a body when referring to the frozen nucleus of ice and dust, and an object when describing the entire comet with its ...
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.
Messier 69 or M69, also known NGC 6637, and NGC 6634, [9] [10] is a globular cluster in the southern constellation of Sagittarius. [a] It can be found 2.5° to the northeast of the star Epsilon Sagittarii and is dimly visible in 50 mm aperture binoculars. The cluster was discovered by Charles Messier on August 31, 1780, the same night he ...
One of the brightest candidate members of the cluster is the eclipsing binary SZ Cam, which is a component of a visual double star ADS 2984. [2] There are eleven variable stars and four candidate variables among the cluster members, including a β Cep , two periodic B-type variables, 2–3 eclipsing variables, and an RR Lyrae star. [ 7 ]