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Eris is one of the largest and farthest dwarf planets in our solar system, with a small moon named Dysnomia. Learn about its discovery, orbit, rotation, surface, atmosphere, and how it changed the definition of a planet.
Learn about Eris, the most massive and second largest dwarf planet in the Solar System. Find out its size, name, history, and how it compares to other objects in space.
Eris is the most distant and second-largest dwarf planet, discovered in 2005 and named after the Greek goddess of discord. It has a highly eccentric and inclined orbit, a methane-ice surface, and a moon called Dysnomia.
Eris is one of the largest and farthest dwarf planets in our solar system, with a small moon named Dysnomia. Learn about its discovery, orbit, rotation, surface, atmosphere, and how it changed the definition of a planet.
Eris is the most massive and second-largest dwarf planet in the Solar System, with a high-eccentricity orbit and one moon, Dysnomia. It was discovered in 2005 and named after the Greco–Roman goddess of strife and discord.
Eris is the furthest and most massive dwarf planet from the Sun, located beyond Neptune and the Kuiper belt. Learn about its orbit, surface, moon, and how it compares to Earth and Pluto.
Eris is a large, icy body in the outer solar system, discovered in 2005 and nicknamed Xena. It is slightly smaller than Pluto and has one moon, Dysnomia, and a highly tilted, elliptical orbit.
Eris is a small, icy and reflective dwarf planet in the Kuiper Belt, slightly larger than Pluto. It has a moon named Dysnomia and was discovered in 2005, leading to Pluto's demotion as a...
Eris is the most distant and extreme dwarf planet in our solar system, with a perihelion of 5.8 billion km (3.6 billion miles) and an aphelion of 14.6 billion km (9.1 billion miles). Learn more about its discovery, structure, surface, atmosphere, moon and exploration.
Learn about Eris, the largest known dwarf planet, discovered in 2003 and named after the Greek goddess of discord. Find out why it is not a planet, how far it is from the Sun, and what its surface and moon are like.