NGC 3745
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NGC 3745 is a lenticular galaxy with a bar structure located in the constellation of
Leo Leo or Léo may refer to: Acronyms * Law enforcement officer * Law enforcement organisation * ''Louisville Eccentric Observer'', a free weekly newspaper in Louisville, Kentucky * Michigan Department of Labor and Economic Opportunity Arts an ...
. NGC 3745 is located 471 million light-years away from the Solar System and was discovered by Ralph Copeland on April 5, 1874, but also observed by Hermann Kobold, Lawrence Parsons, 4th Earl of Rosse, Lawrence Parsons and John Louis Emil Dreyer.


Copeland Septet

NGC 3745 is a member of the Copeland Septet. The other members of the group are NGC 3746, NGC 3748, NGC 3750, NGC 3751, NGC 3753 and NGC 3754. Halton Arp noticed the group when he published the article in 1966. The group is designated as Atlas of Peculiar Galaxies, Arp 320 in which another galaxy PGC 36010, is part of it. This group was also observed by Paul Hickson, in which he included them inside his article in 1982. This group is known as Hickson Compact Group, Hickson 57, in which NGC 3745 is designated as HCG 57G.{{Cite web , title=Data from Revised NGC and IC catalogue by Wolfgang Steinickle - NGC 3700 to 3799 , url=http://astrovalleyfield.ca/AstronomieCompl/NGC%20et%20autres/WolfgangS/N3700_exc_web.htm , access-date=2024-05-03 , website=astrovalleyfield.ca


References

NGC objects, 3745 Principal Galaxies Catalogue objects, 36001 Discoveries by Ralph Copeland Astronomical objects discovered in 1874 MCG objects 2MASS objects SDSS objects Leo (constellation) Arp objects Hickson Compact Groups Lenticular galaxies Copeland Septet