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  2. List of astronomical catalogues - Wikipedia

    en.wikipedia.org/wiki/List_of_astronomical...

    St / Stock — Jürgen Stock (open star clusters) (Stock 1 and 2 in, [38] Stock 3 to 23 in, [39] Stock 24 in [40]) Stone — Ormond Stone (double stars) Streicher — (telescopic asterisms) Stromlo — (for example: Stromlo 2 in Monoceros and Canis Major, at IC 2177; the 'Eagle Nebula') StWr — Stock-Wroblewski (planetary nebulae) Sw — Swift ...

  3. List of NGC objects (1–1000) - Wikipedia

    en.wikipedia.org/wiki/List_of_NGC_objects_(1–1000)

    The astronomical catalogue is composed mainly of star clusters, nebulae, and galaxies. Other objects in the catalogue can be found in the other subpages of the list of NGC objects . The constellation information in these tables is from The Complete New General Catalogue and Index Catalogue of Nebulae and Star Clusters by J. L. E. Dreyer , [ 1 ...

  4. Caldwell catalogue - Wikipedia

    en.wikipedia.org/wiki/Caldwell_catalogue

    Open Cluster: 4.9 Crux: 4.2 C95 NGC 6025 Open Cluster: 2.5 Triangulum Australe: 5.1 C96 NGC 2516: Southern Beehive Cluster: Open Cluster: 1.3 Carina: 3.8 C97 NGC 3766: Pearl Cluster: Open Cluster: 5.8 Centaurus: 5.3 C98 NGC 4609 Open Cluster: 4.2 Crux: 6.9 C99 - Coalsack Nebula: Dark Nebula: 0.61 Crux - C100 IC 2944: Lambda Centauri Nebula ...

  5. List of open clusters - Wikipedia

    en.wikipedia.org/wiki/List_of_open_clusters

    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 galaxy, but the actual total may be up to ten times higher. [ 1 ]

  6. New General Catalogue - Wikipedia

    en.wikipedia.org/wiki/New_General_Catalogue

    NGC 2000.0 (also known as the Complete New General Catalog and Index Catalog of Nebulae and Star Clusters) is a 1988 compilation of the NGC and IC made by Roger W. Sinnott, using the J2000.0 coordinates. [17] [18] It incorporates several corrections and errata made by astronomers over the years. [5]

  7. NGC 884 - Wikipedia

    en.wikipedia.org/wiki/NGC_884

    NGC 884 (also known as χ Persei) is an open cluster located 7640 light years [2] away in the constellation of Perseus. It is the easternmost of the Double Cluster with NGC 869. NGC 869 and 884 are often designated h and χ Persei, respectively. [4] The cluster is about 14 [2] million years old.

  8. Melotte catalogue - Wikipedia

    en.wikipedia.org/wiki/Melotte_catalogue

    The Melotte catalogue is a catalogue of 245 star clusters compiled by British astronomer Philibert Jacques Melotte. It was published in 1915 as A Catalogue of Star Clusters shown on Franklin-Adams Chart Plates. [1] Catalogue objects are denoted by Melotte, e.g. "Melotte 20". Dated prefixes include as Mel + catalogue number, e.g. "Mel 20". [2]

  9. S2 (star) - Wikipedia

    en.wikipedia.org/wiki/S2_(star)

    S2, also known as S0–2, is a star in the star cluster close to the supermassive black hole Sagittarius A* (Sgr A*), orbiting it with a period of 16.0518 years, a semi-major axis of about 970 au, and a pericenter distance of 17 light hours (18 Tm or 120 au) – an orbit with a period only about 30% longer than that of Jupiter around the Sun, but coming no closer than about four times the ...