2. Eris By Ethan P.D.

3. Table of Contents Title Title Table of contents Table of contents What do scientists think the surface of Eris is like and what is the atmosphere like What do scientists think the surface of Eris is like and what is the atmosphere like What is the temperature range and what is the planets diameter or the circumference What is the temperature range and what is the planets diameter or the circumference The moons of Eris and distance from sun The moons of Eris and distance from sun Distance from Earth and rotation time Distance from Earth and rotation time Revolving time and how did it get its name Revolving time and how did it get its name Interesting facts Interesting facts Bibliography/Webliography Bibliography/Webliography

4. Surface and Atmosphere  The surface of Eris is methane ice.  Eris has a unique atmosphere that collapses to an icy glaze when it gets cold enough.

5. Temperature and Diameter  The average temperature of Eris is - 407 degrees.  The diameter of Eris is 2,500 km.

6. Moons and Distance from the sun  Eris has only one moon, Dysnomia.  Dysnomia is the mythological daughter of Eris.  Dysnomia has an icy surface.  Dysnomia was discovered in 2005.  Eris’s distance from the sun is 10.2 x 10 to the 9th power.

7. Miles from the Earth and Rotation time  It takes 25.9 Earth hours to rotate once.  Eris is 15 billion kilometers away from Earth.

8. Revolving time and how did Eris get its name  It takes 557 Earth years to revolve around the sun.  Eris got its name from the Greek goddess of discord and strife.

9. Important facts  Eris the Greek goddess caused the Trojan war.  Eris is the largest dwarf planet.

10. Bibliography/Webl iography  World book E.6  http://amazing- space.stsci.edu Amazing Space http://amazing- space.stsci.edu http://amazing- space.stsci.edu  http://starchild.gsfc.nasa.go v/docs/StarChild/ Star Child http://starchild.gsfc.nasa.go v/docs/StarChild/ http://starchild.gsfc.nasa.go v/docs/StarChild/  http://solarsystem.nasa.gov Solar System http://solarsystem.nasa.gov  http://dwarfplanets.net Dwarf Planets http://dwarfplanets.net