At the top is an unfiltered version of the galaxy. Below, three high pass filters set to overlay mode were applied to increase structural contrast. This method produces some artifacts such as dark halos around point sources (see the two bright stars to the right) but I think the structures revealed around the nucleus are mostly real. The banding contours are, of course, an artifact.
This galaxy was imaged for Proposal 10594: The Formation of Spiral Spheroids and Their Globular Cluster Systems
North is NOT up. It is 32.1° counter-clockwise from up.
Hubble data is public domain, but I put a lot of work into combining it into beautiful color images. The minimal credit line should read: NASA / ESA / J. Schmidt
This work is licensed under a Creative Commons Attribution 3.0 Unported License.