Fascinating pattern of star formation here

http://legacysurvey.org/viewer?ra=180.1670&dec=1.2725&zoom=14&layer=decals-dr5

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looks like an collisional ring to me, very cool!

Wow this galaxy looks amazing, don’t see anything like this before, maybe many more examples are there but I don’t know them.

If this is a collisional ring galaxy you might enjoy the objects in:

Atlas and catalog of collisional ring galaxies.
MADORE B.F., NELSON E. and PETRILLO K.

http://simbad.u-strasbg.fr/simbad/sim-ref?bibcode=2009ApJS..181..572M&simbo=on

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