Eris (minor - planet designation 136199 Eris) is the most massive and second - largest dwarf planet known in the Solar System. Eris was discovered in January 2005 by a Palomar Observatory - based team led by Mike Brown, and its identity was verified later that year. In September 2006 it was named after Eris, the Greek goddess of strife and discord.
what is the significance of the celestial object eris
most massive and second - largest dwarf planet known in the Solar System