Hubble image of Arp 116
Date: 06 September 2012
Satellite: Hubble Space Telescope
Depicts: Arp 116, M 60, Messier 60, NGC 4647, NGC 4649
Copyright: NASA, ESA
Two very different galaxies feature in this image taken by the NASA/ESA Hubble Space Telescope, forming a peculiar galaxy pair called Arp 116.
Arp 116 is composed of a giant elliptical galaxy known as Messier 60, and a much smaller spiral galaxy, NGC 4647.
Astronomers have long tried to determine whether these two galaxies are actually interacting. Although they overlap as seen from Earth, there is no evidence of new star formation, which would be one of the clearest signs that the two galaxies are indeed interacting. However, recent studies of very detailed Hubble images suggest the onset of some tidal interaction between the two.
Last Update: 1 September 2019
