ESO 306-17 [SEP] constellation
ESO 306-17
ESO 306-17 is a fossil group giant elliptical galaxy in the Columba constellation, about 1 million light-years in diameter, and 493 million light-years away.
The galaxy is situated alone in a volume of space about it. It is theorized that the galaxy cannibalized its nearest companions, hence, being a fossil group. The galaxy is a giant elliptical of type cD3 (E+3), one of the largest classes of galaxies.
References.
- Discovery News, "
Bully for ESO 306-17", Jennifer Ouellette, "3 March 2010" (accessed 5 March 2010)
- EurekAlert, "ACS Image of ESO 306-17", Colleen Sharkey, "4 March 2010" (accessed 5 March 2010)
- NASA Extragalactic Database, "object ESO 306-???017" (accessed 5 March 2010)
- SIMBAD, "ESO 306-17 -- Galaxy" (accessed 5 March 2010)