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/Notes/ Planets

NASA. /Notes/ Planets. NASA. The story so far:. Protoplanetary disk. NASA. Gas and dust left-over after the formation of the star. http://www.maths.qmul.ac.uk/~masset/movies/flyby.png. Gravity. Begins pulling together bits of rock and gas. NASA. Gravity. Planetesimals. NASA.

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/Notes/ Planets

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  1. NASA /Notes/ Planets

  2. NASA The story so far:

  3. Protoplanetary disk NASA Gas and dust left-over after the formation of the star.

  4. http://www.maths.qmul.ac.uk/~masset/movies/flyby.png Gravity Begins pulling together bits of rock and gas

  5. NASA Gravity

  6. Planetesimals NASA Baby planets NASA/JPL-Caltech/T. Pyle (SSC)

  7. NASA They’re violent

  8. NASA/JPL-Caltech/T. Pyle (SSC) Planets form Planetesimals combine and grow larger until they become planets

  9. NASA What is a planet?

  10. 1. Orbits the Sun NASA The Moon (not a planet)

  11. NASA

  12. 2. Large enough for gravity to make it round Phobos (a moon of Mars- not a planet) NASA

  13. Moon Phobos

  14. Earth Moon

  15. 3. Has “cleared it’s neighborhood” of debris Pluto (not a planet) NASA

  16. NASA Types of Planets

  17. NASA Gas Giants

  18. NASA Made mostly of hydrogen and helium

  19. NASA May not have any solid ground Probably no surface like on the Earth

  20. NASA All have rings and many moons.

  21. Jupiter

  22. Saturn

  23. Uranus

  24. Neptune

  25. NASA Terrestrial Planets

  26. NASA Are made of rocks similar to the Earth

  27. NASA All have iron cores

  28. NASA Have craters from asteroids and comets

  29. Mercury NASA/Johns Hopkins University Applied Physics Laboratory/Carnegie Institution of Washington

  30. NASA/NSSDC Venus

  31. NASA Earth

  32. NASA Mars

  33. http://www.kiroastro.com/writings/perspective

  34. Dwarf Planets http://commons.wikimedia.org/wiki/File:TheTransneptunians_Size_Albedo_Color.svg

  35. NASA Orbit the Sun

  36. NASA Are large enough for gravity to make them round

  37. NASA Have NOT cleared their neighborhood

  38. NASA A new type of planet Only used since August, 2006

  39. http://commons.wikimedia.org/wiki/File:TheTransneptunians_Size_Albedo_Color.svghttp://commons.wikimedia.org/wiki/File:TheTransneptunians_Size_Albedo_Color.svg

  40. March 23, 2006 http://commons.wikimedia.org/wiki/File:TheTransneptunians_Size_Albedo_Color.svg

  41. April 22, 2006 http://commons.wikimedia.org/wiki/File:TheTransneptunians_Size_Albedo_Color.svg

  42. August 18, 2006 http://commons.wikimedia.org/wiki/File:TheTransneptunians_Size_Albedo_Color.svg

  43. September 14, 2006 http://commons.wikimedia.org/wiki/File:TheTransneptunians_Size_Albedo_Color.svg

  44. March 17, 2007 http://commons.wikimedia.org/wiki/File:TheTransneptunians_Size_Albedo_Color.svg

  45. December 2, 2007 http://commons.wikimedia.org/wiki/File:TheTransneptunians_Size_Albedo_Color.svg

  46. September 18, 2008 http://commons.wikimedia.org/wiki/File:TheTransneptunians_Size_Albedo_Color.svg

  47. Earth http://commons.wikimedia.org/wiki/File:TheTransneptunians_Size_Albedo_Color.svg

  48. Extrasolar Planets • Extrasolar Planet- a planet orbiting a star other than the Sun • As of Feb. 10, 2009: • 340 planets around other stars have been discovered • Source: http://exoplanet.eu/catalog.php

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