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Birthday · July 3, 2024

M83: Star Streams and a Thousand Rubies

July 3, 2024

The stars above are ancient, but your chance to be here is exquisitely temporary.

M83: Star Streams and a Thousand Rubies

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APOD published July 3, 2024. Credit: Michael Sidonio. A publication-date match, not a photo taken on your date. Independent of NASA.

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M83: Star Streams and a Thousand Rubies

Original APOD · July 3, 2024

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. About 40,000 light-years across, M83 is known as the Southern Pinwheel for its pronounced spiral arms. But the wealth of reddish star forming regions found near the edges of the arms' thick dust lanes, also suggest another popular moniker for M83, the Thousand-Ruby Galaxy. This new deep telescopic digital image also records the bright galaxy's faint, extended halo. Arcing toward the bottom of the cosmic frame lies a stellar tidal stream, debris drawn from massive M83 by the gravitational disruption of a smaller, merging satellite galaxy. Astronomers David Malin and Brian Hadley found the elusive star stream in the mid 1990s by enhancing photographic plates.

Image credit: Michael Sidonio

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