NGC 772

NGC 772 (aka Arp 78) is an unbarred spiral galaxy about 130 million light-years away in the constellation Aries. It’s roughly twice the size of the Milky Way Galaxy, about 200,00 light-years across, and is surrounded by several satellite galaxies. The tidal force from one of the satellites, the dwarf elliptical galaxy NGC 770, has distorted one of the spiral arms.

Image Credit: ESA / NASA

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