1. Ian Morris Astronomy 1040

6. The Dwarf Planets Eris Pluto Makemake Haumea Ceres

7. Eris Discovered January 5, 2005 by Brown, Trujillo and Rabinowitz.

8. Eris Largest Dwarf Planet. It is 23% of Earths Moon. Has one Moon: Dysnomia

9. Eris Orbits the Sun every 560 years. Orbital Inclination is 44 degrees.

10. Pluto Discovered February 18, 1930 by Clyde Tombaugh using Newtonian Mechanics.

11. Pluto 2 nd Largest of the Dwarf Planets 3 Moons: Charon Hydra Nix

12. Pluto Mass is about 17% of Earths Moon. Atmosphere is Methane and Carbon Dioxide.

13. Pluto Pluto Orbits the sun every 246 years. Orbital inclination is 17 degrees.

14. Pluto Pluto Orbits around a point outside its central mass due to the mass of Charon. A Binary Planet. Pluto and Charon are tidally locked. The same face is always in the others sky.

15. Haumea Discovered December 28, 2004 by Mike Brown. Has 2 moons: Hiraka Namaka

16. Haumea The elliptical shape is believed to be the result of a collision. Its mass is about 6% of Earths Moon

17. Haumea Orbits the Sun every 238 years. Orbital Inclination is 28 degrees.

18. Makemake Discovered March 31, 2005 by Brown, Trujillo and Rabinowitz.

19. Makemake Has no known Moons. The surface is thought to be similar to Pluto's as both Methane and Nitrogen are present.

20. Makemake Orbits the sun every 309 years Orbital inclination is 29 degrees.

21. Ceres Discovered January 1 1801 by Giuseppe Piazzi Lies in the asteroid belt. Is the only Dwarf Planet outside the Kuiper Belt.

22. Ceres Is composed mostly of rock and water ice. Up to 200 million cubic kilometers of water ice. The crust is 100 km thick ice.

23. Ceres Orbital Period of 4.6 years Orbital Inclination is about 10 degrees

24. Citations http://www.iau.org/ http://web.gps.caltech.edu/~mbrown/2003EL 61/ http://web.gps.caltech.edu/~mbrown/2003EL 61/ http://science.nationalgeographic.com/scienc e/space/solar-system/dwarf-planet/ http://science.nationalgeographic.com/scienc e/space/solar-system/dwarf-planet/