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                                                Eris Planet Facts

The Dwarf Planet Eris is named the Greek goddess of strife and discord. It is the second largest dwarf planet after Pluto. Once it was considered as the tenth planet of the solar system. Some scientists believe that it was originally located inside the Kuiper Belt. Eris was discovered on January 5, 2005. In 2006, it was demoted to a dwarf planet by International Astronomical Union.

Quick Facts: –

  • It is the furthest dwarf planet from the Sun with a distance of 9.7 billion miles.
  • Eris has only one moon called Dysnomia. This moon is named after the daughter of Greek goddess Eris.
  • Eris is believed to have a rocky surface like Pluto.
  • It takes 560.9 Earth years to orbit the Sun.
  • This dwarf planet has an extremely cold surface area of -231°C. It varies from -217°C to -243°C.
  • It is the most massive of all five dwarf planets.
  • It has a diameter of 1,451 miles. When it was first discovered, it shone so brightly that it was assumed to be larger than Pluto.
  • Eris was first spotted in October 2003 by Mike Brown during a Palomar Observatory Survey of the outer solar system but the discovery was confirmed in 2005.
  • Eris rotates once in every 25 hours. A day on Eris is slightly lengthier than the Earth.
  • Researchers gave a conclusion that Eris is a spherical rocky body covered in a thin mantle of ice.
  • Its surface is extremely reflective as it bounces almost 96% of light back that strikes it.
  • This surface is believed to be composed of a nitrogen-rich ice mixed with frozen methane.
  • The complete name of Eris is 136199 Eris.
  • This dwarf planet is about 4.5 billion years old.


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