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  2. Cosmic distance ladder - Wikipedia

    en.wikipedia.org/wiki/Cosmic_distance_ladder

    Moving cluster parallax is a technique where the motions of individual stars in a nearby star cluster can ... order, the rate of change of frequency ... template, as ...

  3. List of astronomical catalogues - Wikipedia

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

    Abel (globular star clusters) Abell — Abell catalogue; Abetti — Giorgio Abetti (double stars) Abt — (for example: open star cluster Abt 1 = Biurakan 4 = Markarian 6 = Stock 7) (at 2:29.6 / +60°39' near the southwestern section of the Heart Nebula in Cassiopeia) AC — Astrographic Catalogue; A.C. — Alvan Clark (double stars)

  4. Caldwell catalogue - Wikipedia

    en.wikipedia.org/wiki/Caldwell_catalogue

    The Caldwell catalogue is an astronomical catalogue of 109 star clusters, nebulae, and galaxies for observation by amateur astronomers.The list was compiled by Patrick Moore as a complement to the Messier catalogue.

  5. Astronomical catalog - Wikipedia

    en.wikipedia.org/wiki/Astronomical_catalog

    ESO Science Archive has been providing access to data from astronomical catalogs since 1988. [1]An astronomical catalog or 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.

  6. List of most massive star clusters - Wikipedia

    en.wikipedia.org/wiki/List_of_most_massive_star...

    Toggle the table of contents. ... Below are lists of the most massive known star clusters in solar masses (M ☉) and sorted in descending order. Methods for mass ...

  7. Star cluster - Wikipedia

    en.wikipedia.org/wiki/Star_cluster

    In 1979, the International Astronomical Union's 17th general assembly recommended that newly discovered star clusters, open or globular, within the Galaxy have designations following the convention "Chhmm±ddd", always beginning with the prefix C, where h, m, and d represent the approximate coordinates of the cluster centre in hours and minutes ...

  8. List of largest star clusters - Wikipedia

    en.wikipedia.org/wiki/List_of_largest_star_clusters

    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 ...

  9. 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 ]