Image Credit and Copyright: CHART32 Team, Processing – Johannes Schedler

Located in the constellation Piscis Austrinus and around 320 million light-years away is HCG-91. Discovered by Canadian astronomer Paul Hickson and his colleagues, this is an example of a Hickson Compact Group (HCG)- one of the approximately 100 compact groups of galaxies. The three colorful spiral galaxies imaged here are intertwined in a gravitational tug of war, creating tails nearly 100,000 light-years long.


Published by Julia Mariani

(Source: NASA)

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