Odd Galaxy Couple on Space Voyage
Two very different galaxies drift through space together in this image taken by NASA's Hubble Space Telescope. The peculiar galaxy pair is called Arp 116. Arp 116 is composed of a giant elliptical galaxy known as Messier 60 (or M60) and a much smaller spiral galaxy, NGC 4647. The faint bluish spiral galaxy NGC 4647 is about two-thirds of M60 in size and much lower in mass – roughly the size of our galaxy, the Milky Way.
M60 lies roughly 54 million light-years away from Earth; NGC 4647 is about 63 million light-years away. This image combines exposures from Hubble's Advanced Camera for Surveys and Wide Field and Planetary Camera 2.