M83

The Southern Pinwheel Galaxy is a magnificent face-on barred spiral galaxy in Hydra, about 15 million light-years from Earth. It is one of the nearest and brightest barred spiral galaxies, spanning about 55,000 light-years. M83 is a prolific starburst galaxy and one of the most active supernova producers known, with six recorded supernovae.

Located about 6 degrees south of Gamma Hydrae. Its southerly declination (-30 degrees) makes it challenging from northern latitudes but rewarding when conditions allow. From clear, low-horizon sites, binoculars show a bright, round glow. A telescope reveals a brilliant bar-shaped core with spiral arms visible in 8 inches or more under dark skies. Best observed from April through June; get it when it's at its highest.

Discovered by Nicolas Louis de Lacaille on February 23, 1752 from South Africa — one of the earliest galaxies discovered. Charles Messier cataloged it on February 17, 1781 from Paris, noting it was very difficult from his location.