Harold Corwin

IC 575 is an S0 sp pec with a strong dust lane that looks similar to NGC 5128. It is often called a "polar ring galaxy" (see e.g. Schweizer, Whitmore, and Rubin, AJ 88, 909, 1983 and Whitmore et al AJ 100, 1489, 1990); this class is assumed to arise from the merger of two galaxies, but detailed data for this particular galaxy is pretty thin on the ground (see Cox and Sparke, AJ 128, 2013, 2004, and references therein).

Nevertheless, it is an interesting object, appearing on the DSS as quite similar to Saturn seen with its rings almost edge-on. The corona is also somewhat distorted with very faint extensions north and south. It's also the brightest in a group also containing IC 574 and MCG -01-25-059. One of the companions is a very faint IBm just 50 arcseconds to the southwest.

― IC Notes by Harold Corwin

Drawings, descriptions, and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission.

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