Eris 🪐

Eris is the most massive and second-largest known dwarf planet in the Solar System. Eris was discovered in January 2005 by a Palomar Observatory-based team led by Mike Brown, and its discovery was verified later that year. In September 2006 it was named after the goddess of strife and discord.

Orbital period: 558 years

Discovered: 5 January 2005

Radius: 1,163 km

Surface area: (1.70±0.02)×107 km2

Orbits:

Sun Moon: Dysnomia