A quite unknown pair of interacting galaxies is shown here. Dusty ESO 240-11 shining at mag 13.2 is the edge-on spiral in the upper part of the field, ESO 240-10 at mag 12.6 is the elliptical galaxy in the lower part showing 2 bright cores and tidal extensions.
Many fine details can be spotted in ESO 240-11.
LRGB (620-180-180-160 min) total 19 h, north is down, seeing 0.8-1.2 arc-sec,
80cm f/7 Astrooptik Keller cassegrain, FLI PL-16803, Astrodon LRGB GenII filters, Prompt 7 CTIO Chile
Find the partly cropped image in 25/80% size below.