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M83: The Southern Pinwheel

September 11, 2026

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Selected image source ↗ APOD published September 11, 2026. Credit: Aldo Zanetti. A publication-date match, not a photo taken on your date. Independent of NASA.

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M83: The Southern Pinwheel

Original APOD · September 11, 2026 ↗

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Beautiful and bright spiral galaxy M83 lies some 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, the Southern Pinwheel. Still, reddish star forming regions that dot this cosmic pinwheel's spiral arms have suggested another nickname, the Thousand-Ruby Galaxy. A mere 40,000 light-years across, smaller than the Milky Way, M83 is a member of a group of galaxies that includes active galaxy Centaurus A. In fact, 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. This sharp, groundbased telescopic view also features foreground Milky Way stars and distant background galaxies. APOD's main NASA site is moving: From apod.nasa.gov to science.nasa.gov/apod

Image credit: Aldo Zanetti

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