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Birthday · September 27, 2008

M83: The Thousand-Ruby Galaxy

September 27, 2008

On this day, the universe repeated one of its rarest tricks: it arranged dust, light, memory, and possibility into a person no equation...

M83: The Thousand-Ruby Galaxy

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APOD published September 27, 2008. Full image credits are on the original APOD entry below. A publication-date match, not a photo taken on your date. Independent of NASA.

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M83: The Thousand-Ruby Galaxy

Original APOD · September 27, 2008

Big, bright, and beautiful, spiral galaxy M83 lies a mere twelve million light-years away, near the southeastern tip of the very long constellation Hydra. Prominent spiral arms traced by dark dust lanes and blue star clusters lend this galaxy its popular name of the Southern Pinwheel. But reddish star forming regions that dot the sweeping arms highlighted in this sparkling color composite also suggest another nickname, The Thousand-Ruby Galaxy. About 40,000 light-years across, M83 is a member of a group of galaxies that includes active galaxy Centaurus A. The core of M83 itself is bright at x-ray energies, showing a high concentration of neutron stars and black holes left from an intense burst of star formation. The sharp image, based on archival data from the European Southern Observatory's Wide Field Imager camera, also features spiky foreground Milky Way stars and distant background galaxies.

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