irregular galaxy

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Hubble spotlights irregular galaxy IC 3583

28 November 2016 Astronomy Now

This NASA/ESA Hubble Space Telescope image reveals a delicate blue group of stars — actually an irregular galaxy named IC 3583 — that sits some 30 million light-years away in the constellation of Virgo. This small galaxy is thought to be gravitationally interacting with one of its neighbours, the spiral Messier 90.

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Hubble sees a lopsided lynx

8 August 2016 Astronomy Now

This galaxy, known as NGC 2337, resides 25 million light-years away in the high northern constellation of Lynx. NGC 2337 is an irregular galaxy, meaning that it lacks a distinct, symmetrical appearance. The galaxy was discovered in 1877 by the French astronomer Édouard Stephan who, in the same year, discovered the galactic group Stephan’s Quintet.