Samantha Mathewson joined Space.com as an intern in the summer of 2016. She received a B.A. in Journalism and Environmental Science at the University of New Haven, in Connecticut. Previously, her work has been published in Nature World News. When not writing or reading about science, Samantha enjoys traveling to new places and taking photos! You can follow her on Twitter @Sam_Ashley13.
Galaxy NGC 772 boasts one overdeveloped spiral arm due to tidal interactions with an unruly neighbor.
NGC 772's overdeveloped spiral arm stretches across the foreground of the new image, toward the left-hand edge of the frame. The image shows that this peculiar galaxy lacks the bright central bar — a large, linear structure composed of gas, dust and stars — that most other spiral galaxies like ourand Andromeda exhibit. As a result, NGC 772's spiral arms sprout directly from the bright center of the galaxy.
Due to NGC 772's unusual appearance, the galaxy was included the Atlas of Peculiar Galaxies, which is a 1966 collection by astronomer Halton Arp capturing 338 weird and wonderful populating the universe. The galaxies in this catalog boast odd structures, like trailing tidal tails, rings, jets, detached segments or other idiosyncrasies.
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