Astronomers Discover An Entirely New Kind Of Galaxy

Astronomers at the University of Minnesota Duluth and the North Carolina Museum of Natural Sciences have identified a new class of ring galaxy. Named PGC 1000714, it features an elliptical core with not one, but two outer rings. It’s the only known galaxy of its kind in the known universe.

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Tau.Neutrino said:

Astronomers Discover An Entirely New Kind Of Galaxy

Astronomers at the University of Minnesota Duluth and the North Carolina Museum of Natural Sciences have identified a new class of ring galaxy. Named PGC 1000714, it features an elliptical core with not one, but two outer rings. It’s the only known galaxy of its kind in the known universe.

More…

I don’t see the second ring. It looks very much like ‘Hoag’s Object’ to me. Even Hoag’s object can be thought of as having several offset rings.

Some objects in our own galaxy have a central core and two rings. Centred like this.

Or offset like this.