Image courtesy of the European Southern Observatory. Located about 130 million light-years away, NGC 4650A is one of only 100 known polar-ring galaxies. 15) NGC 4650A-- This Irregular galaxy is an example of a class known as "polar ring galaxies." One possibility is that polar rings are the remnants of colossal collisions between two galaxies sometime in the distant past, probably at least 1 billion years ago. It is one of the best-investigated objects among the class of Polar Ring Galaxies (PRGs).

Their unusual disk-ring structure is not yet understood fully. 1). NGC 3564 - Galaxy NGC 4936 - Galaxy NGC 4744 - Galaxy NGC 5398 - Galaxy NGC 4622 - Galaxy NGC 3882 - Galaxy NGC 3568 - Galaxy NGC 5408 - Galaxy NGC 5237 - Galaxy NGC 4677 - Galaxy IC 4299 - Galaxy NGC 5488 - Galaxy IC 4386 - Galaxy NGC 4616 - Galaxy NGC 4603D - Galaxy NGC 5333 - Galaxy NGC 4112 - Galaxy IC 4219 - Galaxy NGC 5292 - Galaxy The PRGs are multi-spin systems com-posed of a central spheroid (which is the host galaxy), and a polar structure, which orbits nearly perpendicularly to the equa- torial plane of the host galaxy. What is left of one galaxy has become the rotating inner disk of old red stars in the … Only about 100 polar ring galaxies are known. about 200,000 light years, NGC 1365 is a supergiant galaxy located about 60 million light years away in the constellation Fornax (the Furnace). NGC 3564 - Galaxy NGC 4936 - Galaxy NGC 4744 - Galaxy NGC 5398 - Galaxy NGC 4622 - Galaxy NGC 3882 - Galaxy NGC 3568 - Galaxy NGC 5408 - Galaxy NGC 5237 - Galaxy NGC 4677 - Galaxy IC 4299 - Galaxy NGC 5488 - Galaxy IC 4386 - Galaxy NGC 4616 - Galaxy NGC 4603D - Galaxy NGC 5333 - Galaxy NGC 4112 - Galaxy IC 4219 - Galaxy NGC 5292 - Galaxy

Historical Identification: Per Dreyer, NGC 4650 (= GC 3183 = JH 3413, 1860 RA 12 36 41, NPD 129 57.6) is "very faint, round, brighter middle, mottled but not resolved. Polar Ring Galaxy NGC 4650A - May 10, 1999; Polar Ring Galaxy NGC 2685 - 2007 February 16; Polar Ring Galaxy NGC 660 - 2009 December 3; Internet Voters Get Two Galaxies in One from Hubble; X marks the spot in dark matter web - Polar ring galaxies offer first-hand evidence of the existence of the cosmic web, New Scientist, 29 February 2008 The galaxy NGC 4650A is a polar disk galaxy (see Fig.