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Birthday · March 16, 2005

Markarian's Chain of Galaxies

March 16, 2005

The atoms in your body have known many forms: star core, drifting dust, ocean mineral, living cell.

Markarian's Chain of Galaxies

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APOD published March 16, 2005. Credit: R. Gilbert, J. Harvey et al. (SSRO). A publication-date match, not a photo taken on your date. Independent of NASA.

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Markarian's Chain of Galaxies

Original APOD · March 16, 2005

Across the heart of the Virgo Cluster of Galaxies lies a striking string of galaxies known as Markarian's Chain. The chain, pictured above, is highlighted on the upper right with two large but featureless lenticular galaxies, M84 and M86, and connects to the large spiral on the lower left, M88. Prominent on the lower right but not part of Markarian's Chain is the giant elliptical galaxy M87. The home Virgo Cluster is the nearest cluster of galaxies, contains over 2000 galaxies, and has a noticeable gravitational pull on the galaxies of the Local Group of Galaxies surrounding our Milky Way Galaxy. The center of the Virgo Cluster is located about 70 million light years away toward the constellation of Virgo. At least seven galaxies in the chain appear to move coherently, although others appear to be superposed by chance.

Image credit: R. Gilbert, J. Harvey et al. (SSRO)

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