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An astronomical catalogue is a list or tabulation of astronomical objects, typically grouped together because they share a common type, morphology, origin, means of detection, or method of discovery. Astronomical catalogs are usually the result of an astronomical survey of some kind.
The following is a list of NGC objects, that is objects listed in the New General Catalogue (NGC). It is one of the largest comprehensive astronomical catalogues for deep sky objects such as star clusters, nebulae, and galaxies. List of NGC objects (1–1000) List of NGC objects (1001–2000) List of NGC objects (2001–3000)
Richness: A cluster must have a minimum population of 50 members within a magnitude range of m 3 to m 3 +2 (where m 3 is the magnitude of the 3rd-brightest member of the cluster). To ensure a healthy margin of error, this criterion was not applied rigorously, and the final catalog included many clusters with fewer than fifty members (though ...
Globular cluster: 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 ...
List of most massive open clusters Cluster name Mass (M ☉); (Sun = 1) Galaxy Notes NGC 1569-B (4.4 ± 1.1) × 10 5 [13] NGC 1569: NGC 1569-A (3.3 ± 0.5) × 10 5 [14] NGC 1569: RMC 136: 8.7 × 10 4 [15] Large Magellanic Cloud: Contains the most massive known star R136a1 at 196 +34 −27 M ☉. [16] NGC 346: 5 × 10 4 [17] Small Magellanic ...
Tonantzintla, Mexico Observatorio Solar Carl Sagan: 2000 Hermosillo, Sonora, Mexico Observatory House (defunct) 1789 Slough, UK Observatory of the rue Serpente (defunct) 1890–1968 Paris, France Oil Region Astronomical Observatory: Venango County, Pennsylvania, US Onan Observatory: 1990 Norwood Young America, Minnesota, US
The Milky Way. Population II stars are in the galactic bulge and globular clusters. Artist’s impression of a field of population III stars 100 million years after the Big Bang. Population II, or metal-poor, stars are those with relatively little of the elements heavier than helium. These objects were formed during an earlier time of the universe.
Messier 34 (also known as M34, NGC 1039, or the Spiral Cluster) is a large and relatively near open cluster in Perseus. It was probably discovered by Giovanni Batista Hodierna before 1654 [ 4 ] and included by Charles Messier in his catalog of comet -like objects in 1764.