Copeland’s Septet
Copeland’s Septet, also known as Hickson Compact Group 57 (HCG 57) and Arp 320, is a group of interacting galaxies located in the constellation Leo.
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Stephan’s Quintet
Great Square of Pegasus
The Great Square of Pegasus is an asterism formed by three bright stars in Pegasus constellation – Markab, Scheat and Algenib – and Alpheratz in… Read More »Great Square of Pegasus
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