83 The Southern Pinwheel Galaxy Object Description: Messier 83 Spiral Galaxy type SBc. Distance ~15Mio. Light Years. Mag. 7.9. Visible Diameter 14.1' / 12.9'. Constellation  Hydra . M 83 at Seds.org (EN) M 83 Wikipedia (DE) M 83 Wikipedia (EN) APOD 2007 (EN) APOD 2005 (EN) APOD 1999 (EN) NASA /