NGC 1856 [SEP] constellation
NGC 1856
NGC 1856 is a young, massive star cluster similar to a "blue globular cluster" in the Magellanic Clouds in the constellation Dorado. Its age is estimated to be 80 million years. The object was discovered in 1826 by James Dunlop with a 9-inch reflecting telescope.
NGC 2857
NGC 2857 (also known as Arp 1 and PGC 26666) is a spiral galaxy in the constellation Ursa Major. It was discovered on January 9, 1856 by R. J. Mitchell.
NGC 2857 is the first object in Halton Arp's Atlas of Peculiar Galaxies, and one of six Arp objects in the 'Low Surface Brightness Galaxies' section. The other five low surface brightness galaxies are Arp 2 (UGC 10310), Arp 3, Arp 4, Arp 5 (NGC 3664), and Arp