AM 0520-390
One of the more normal spiral galaxies that made it into the catalog. Looks like some past interaction just finishing up. This one happens to be overlapping a background galaxy, which might possibly (conjecture on my part) have been mistaken for part of the foreground galaxy at the time it was cataloged.
Taking a look at the catalog itself, this is noted as "RING w. I/A COMP'NS" (ring with interacting companions) and this would appear to be two mistakes: that this is a ring galaxy, and that the background galaxy is a nearby companion. I will note, however, it does look a bit like a ring in the imagery they saw (edit: actually this seems to be imagery from NED, not necessarily the original plate), and that would logically put the backgrounder as a companion based on other assumptions about ring galaxies. Uh, astronomy is based on a lot of assumptions, sometimes.
Found a color image in the DES DR1 data.
legacysurvey.org/viewer?ra=80.6775&dec=-39.0634&z...
Data from the following proposal is used to create this image:
Establishing HST's Low Redshift Archive of Interacting Systems
All channels: ACS/WFC F606W
North is 55.93° counter-clockwise from up.
AM 0520-390
One of the more normal spiral galaxies that made it into the catalog. Looks like some past interaction just finishing up. This one happens to be overlapping a background galaxy, which might possibly (conjecture on my part) have been mistaken for part of the foreground galaxy at the time it was cataloged.
Taking a look at the catalog itself, this is noted as "RING w. I/A COMP'NS" (ring with interacting companions) and this would appear to be two mistakes: that this is a ring galaxy, and that the background galaxy is a nearby companion. I will note, however, it does look a bit like a ring in the imagery they saw (edit: actually this seems to be imagery from NED, not necessarily the original plate), and that would logically put the backgrounder as a companion based on other assumptions about ring galaxies. Uh, astronomy is based on a lot of assumptions, sometimes.
Found a color image in the DES DR1 data.
legacysurvey.org/viewer?ra=80.6775&dec=-39.0634&z...
Data from the following proposal is used to create this image:
Establishing HST's Low Redshift Archive of Interacting Systems
All channels: ACS/WFC F606W
North is 55.93° counter-clockwise from up.