This is an X-ray image (red and green)/optical (purple) for DEM L316 of two hot gas shells produced by supernova explosions in the constellation Dorado. Image is 5.7 arcmin across. RA 05h 47m 15.00s Dec -69º 42' 25.00" in Dorado. Observation date: 27 July 2002. Color code: X-ray (Red 0.8-1.5 keV, Green 1.5-8 keV, Blue 0.3-8 keV); Optical (Purple). Instrument: ACIS. Aka: WCD97 Shell A, WCD97 Shell B. Credit: X-ray: NASA/CXC/U. Illinois/R. Williams & Y.-H. Chu; Optical: NOAO/CTIO/U. Illinois/R. Williams & MCELS coll.{{Fair use}}
