NGC 5566 in the center of this image is a barred spiral galaxy in the constellation Virgo. The galaxy is the biggest in this constellation, stretching nearly 150,000 light years in diameter
Together with the two galaxies NGC 5560 (warped right) and NGC 5569 (blue left) these are forming a gravitational interacting trio known as Arp 286 situated in a distance between 67 and 79 million light years away from Earth. The galaxy at the lower left border is PGC 51269 at a distance of 487 million light-years.
LRGB (600-140-140-140 min) total 17 h, north is up, seeing 0.9-1.3 arc-sec,
80cm f/7 Astrooptik Keller cassegrain, FLI PL-16803, Astrodon filters, Prompt 7 CTIO Chile
Processing: Johannes Schedler
See also the election as APOD here.
Below you find a normal LRGB version and an inverted enhanced version to show tidal features.