NASA / ESA / HUBBLE HERITAGE TEAM / STSCI / SCIENCE PHOTO LIBRARY NASA / ESA / HUBBLE HERITAGE TEAM / STSCI / SCIENCE PHOTO LIBRARY
Dwarf galaxy Holmberg IX. This dwarf irregular galaxy is a loose collection of stars located just off the outer edge of M81, a large spiral galaxy in Ursa Major. This image was taken with Hubble's Advanced Camera for Surveys in early 2006. Holmberg IX is of the so-called Magellanic type of galaxy, as its size and irregularity in structure are similar to the Small Magellanic Cloud, a neighbour to our own Milky Way. Holmberg IX was first discovered by astronomer Sidney van den Bergh in 1959, and cataloged as DDO 66.
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