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  2. List of astronomical catalogues - Wikipedia

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

    AM — Arp-Madore catalogue of open and globular star clusters (Halton Arp / Barry F. Madore) (for example: Arp-Madore 1 in Horologium, Arp-Madore 2 in Puppis) An — Anderson (double stars) 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)

  3. NGC 7625 - Wikipedia

    en.wikipedia.org/wiki/NGC_7625

    NGC 7625, or Arp 212, is a peculiar galaxy in the constellation of Pegasus.It was discovered on October 15, 1784, by William Herschel. [8] In his New General Catalogue (1888), J. L. E. Dreyer described it as pretty bright, considerably small, round, with a suddenly much brighter middle. [9]

  4. Atlas of Peculiar Galaxies - Wikipedia

    en.wikipedia.org/wiki/Atlas_of_Peculiar_Galaxies

    These counter-tails are tidal features caused by the gravitational interactions between two galaxies, just like similar features described in the Arp catalog. Messier 32 (Arp 168), a dwarf galaxy interacting with the Andromeda Galaxy , [ 4 ] is included in this category (although the "diffuse counter-tail" is very difficult to see in Arp's ...

  5. Category:Arp objects - Wikipedia

    en.wikipedia.org/wiki/Category:Arp_objects

    Help keep this category in order, modify [[Category:Arp objects]] to [[Category:Arp objects|###]], dropping the Arp or APG prefix, using only the number, on pages that categorize here. Contents Top

  6. Halton Arp - Wikipedia

    en.wikipedia.org/wiki/Halton_Arp

    Halton Christian "Chip" Arp (March 21, 1927 – December 28, 2013) was an American astronomer. He is remembered for his 1966 book Atlas of Peculiar Galaxies , which catalogued unusual looking galaxies and presented their images.

  7. NGC 772 - Wikipedia

    en.wikipedia.org/wiki/NGC_772

    NGC 772 (also known as Arp 78 or the Fiddlehead Galaxy [3]) is a large unbarred spiral galaxy approximately 106 million light-years away in the constellation Aries. It was discovered on 29 November 1785 by German-British astronomer William Herschel .

  8. Arp 273 - Wikipedia

    en.wikipedia.org/wiki/Arp_273

    Arp 273 is a pair of interacting galaxies, 300 million light years away in the constellation Andromeda. It was first described in the Atlas of Peculiar Galaxies , compiled by Halton Arp in 1966. [ 5 ]

  9. Arp 271 - Wikipedia

    en.wikipedia.org/wiki/Arp_271

    Arp 271 is a pair of similarly sized interacting spiral galaxies, NGC 5426 and NGC 5427, in the constellation of Virgo. It is not certain whether the galaxies are going to eventually collide or not. It is not certain whether the galaxies are going to eventually collide or not.