Successfully reported this slideshow.
We use your LinkedIn profile and activity data to personalize ads and to show you more relevant ads. You can change your ad preferences anytime.
Dwarf Planets Solar System Debris
Planets vs Dwarf Planets <ul><li>Planets </li></ul><ul><ul><li>Orbits the Sun directly </li></ul></ul><ul><ul><li>Massive ...
Official Dwarf Planets <ul><li>1. Ceres – discovered on January 1, 1801 (45 years before Neptune),  </li></ul><ul><li>2. P...
The Dwarf Planets in Comparison Name Diameter relative to Luna Mass relative to Luna Density (Kg/m 3 ) Temperature (K) Orb...
Ceres <ul><li>Found in the asteroid belt in 1801 </li></ul><ul><li>Considered a planet for half a century before reclassif...
Ceres - The numbers <ul><ul><li>Contains 1/3 the total mass  of all the asteroids </li></ul></ul><ul><ul><li>Orbital Perio...
Ceres – Discovery <ul><li>Possibility of its existence first suggested in 1772 </li></ul><ul><li>Discovered in 1801 by Giu...
Ceres - Characteristics  <ul><li>Surface like a C-class asteroid </li></ul><ul><li>Possibly differentiated interior? </li>...
The Dawn Mission <ul><li>Will study asteroids Vesta and Ceres </li></ul><ul><li>Will arrive at Vesta in July 2011 </li></u...
Kuiper Belt Objects (KBO) <ul><li>AKA: Trans-Neptunian Objects  (TNO) </li></ul><ul><li>Comet-like material </li></ul><ul>...
Pluto <ul><li>Considered the 9 th  planet from 1930 to 2006 </li></ul><ul><li>Classified as a planet for 76 years.  </li><...
Pluto - Discovery <ul><li>Observations of Neptune showed that something was perturbing its orbit </li></ul><ul><li>In 1906...
Pluto - Discovery
Pluto in the blink comparator
Pluto -  The numbers <ul><ul><li>Orbital Period: 248 years </li></ul></ul><ul><ul><li>Semi-major axis: 39 AU </li></ul></u...
Pluto – The Orbit <ul><li>Highly eccentric </li></ul><ul><ul><li>Inside Neptune from 79-99 </li></ul></ul><ul><li>Tilted 1...
Pluto – What is it really? <ul><li>Highly eccentric orbit </li></ul><ul><li>+Atmosphere thaws and freezes depending on dis...
Haumea  <ul><li>A plutoid </li></ul><ul><ul><li>Dwarf planets beyond Neptune </li></ul></ul><ul><li>Named after the goddes...
Haumea - Discovery <ul><li>Discovered in 2004 by Mike Brown at CalTech </li></ul><ul><li>Discovery first announced by a Sp...
Haumea’s Shape <ul><li>Spins very fast </li></ul><ul><ul><li>A rotation in 4 hours </li></ul></ul><ul><li>This rotation ca...
Haumea – the numbers <ul><ul><li>Orbital Period: 285 years </li></ul></ul><ul><ul><li>Diameter: ~1400Km </li></ul></ul><ul...
Makemake <ul><li>Plutoid </li></ul><ul><li>Named for the creator god of Easter Island </li></ul><ul><li>No known satellite...
Makemake - Discovery <ul><li>Discovered in 2005 by Mike Brown at CalTech </li></ul><ul><li>Further from ecliptic than othe...
Makemake – the nubmers <ul><ul><li>Orbital Period: 309 years </li></ul></ul><ul><ul><li>Semi-major axis: 43.1 AU </li></ul...
Eris <ul><li>Largest dwarf planet in solar system </li></ul><ul><li>27% more massive than Pluto </li></ul><ul><li>Named fo...
Eris - Discovery <ul><li>Discovered in 2005 by Mike Brown at CalTech </li></ul><ul><li>Called the &quot;tenth planet” in m...
Eris – The numbers <ul><ul><li>Orbital Period: 557 years </li></ul></ul><ul><ul><li>Semi-major axis: 68 AU </li></ul></ul>...
Other Trans-Neptunian Objects
Pluto’s Demise
Upcoming SlideShare
Loading in …5
×

Dwarf planets

6,640 views

Published on

Lecture for the dwarf planets Ceres, Pluto, Haumea, Makemake, and Eris

Published in: Education
  • ano po ba yung 4 na dumagdag sa dwarf planet ?
       Reply 
    Are you sure you want to  Yes  No
    Your message goes here

Dwarf planets

  1. 1. Dwarf Planets Solar System Debris
  2. 2. Planets vs Dwarf Planets <ul><li>Planets </li></ul><ul><ul><li>Orbits the Sun directly </li></ul></ul><ul><ul><li>Massive enough to be rounded by its own gravity </li></ul></ul><ul><ul><li>Has cleared the smaller bodies from its orbit </li></ul></ul><ul><li>Dwarf Planets </li></ul><ul><ul><li>Orbits the Sun directly </li></ul></ul><ul><ul><li>Massive enough to be rounded by its own gravity </li></ul></ul><ul><ul><li>Has not cleared the smaller bodies from its orbit </li></ul></ul>
  3. 3. Official Dwarf Planets <ul><li>1. Ceres – discovered on January 1, 1801 (45 years before Neptune), </li></ul><ul><li>2. Pluto – discovered on February 18, 1930,. </li></ul><ul><li>3. Eris – discovered on January 5, 2005. </li></ul><ul><li>4. Haumea – discovered on December 28, 2004. Makemake – discovered on March 31, 2005. </li></ul><ul><li>5. </li></ul>
  4. 4. The Dwarf Planets in Comparison Name Diameter relative to Luna Mass relative to Luna Density (Kg/m 3 ) Temperature (K) Orbital period (yrs) Ceres 28% 1.3% 2080 167 4.6 Pluto 69% 17.8% 2000 44 248 Haumea 33% 5.7% 2600-3300 32 285 Makemake 43% ~5%? ~2000? ~30 309 Eris 78% 22.7% 2300 42 557
  5. 5. Ceres <ul><li>Found in the asteroid belt in 1801 </li></ul><ul><li>Considered a planet for half a century before reclassification as an asteroid. </li></ul><ul><li>Once considered the largest asteroid </li></ul><ul><li>Classified as a dwarf planet on September 13, 2006. </li></ul>
  6. 6. Ceres - The numbers <ul><ul><li>Contains 1/3 the total mass of all the asteroids </li></ul></ul><ul><ul><li>Orbital Period: 4.6 years </li></ul></ul><ul><ul><li>Semi-major axis: 2.8 AU </li></ul></ul><ul><ul><li>Diameter: 950 Km </li></ul></ul><ul><ul><li>Temperature: 167 K </li></ul></ul>
  7. 7. Ceres – Discovery <ul><li>Possibility of its existence first suggested in 1772 </li></ul><ul><li>Discovered in 1801 by Giuseppe Piazzi </li></ul><ul><li>Named for the Roman goddess of plants </li></ul>
  8. 8. Ceres - Characteristics <ul><li>Surface like a C-class asteroid </li></ul><ul><li>Possibly differentiated interior? </li></ul><ul><li>Bright spot of unknown composition </li></ul><ul><li>Possible tenuous atmosphere and frost </li></ul>
  9. 9. The Dawn Mission <ul><li>Will study asteroids Vesta and Ceres </li></ul><ul><li>Will arrive at Vesta in July 2011 </li></ul><ul><li>Will arrive at Ceres in February 2015 </li></ul>
  10. 10. Kuiper Belt Objects (KBO) <ul><li>AKA: Trans-Neptunian Objects (TNO) </li></ul><ul><li>Comet-like material </li></ul><ul><li>Disk beyond Neptune </li></ul>
  11. 11. Pluto <ul><li>Considered the 9 th planet from 1930 to 2006 </li></ul><ul><li>Classified as a planet for 76 years. </li></ul><ul><li>Named for Roman god of the underworld </li></ul><ul><li>Reclassified as a dwarf planet on August 24, 2006 </li></ul><ul><li>Became the first dwarf planet </li></ul>
  12. 12. Pluto - Discovery <ul><li>Observations of Neptune showed that something was perturbing its orbit </li></ul><ul><li>In 1906 the Lowell Observatory began a search for “Planet X” </li></ul><ul><li>Clyde Tombaugh discovered Pluto in 1930 using a blink comparator </li></ul>
  13. 13. Pluto - Discovery
  14. 14. Pluto in the blink comparator
  15. 15. Pluto - The numbers <ul><ul><li>Orbital Period: 248 years </li></ul></ul><ul><ul><li>Semi-major axis: 39 AU </li></ul></ul><ul><ul><li>Diameter: 2300 Km </li></ul></ul><ul><ul><li>Temperature: 44  K </li></ul></ul><ul><ul><li>3 known moons </li></ul></ul><ul><ul><ul><li>Charon : more than ½ the size of Pluto </li></ul></ul></ul><ul><ul><ul><li>Nix </li></ul></ul></ul><ul><ul><ul><li>Hydra </li></ul></ul></ul>
  16. 16. Pluto – The Orbit <ul><li>Highly eccentric </li></ul><ul><ul><li>Inside Neptune from 79-99 </li></ul></ul><ul><li>Tilted 17º from ecliptic </li></ul>
  17. 17. Pluto – What is it really? <ul><li>Highly eccentric orbit </li></ul><ul><li>+Atmosphere thaws and freezes depending on distance from Sun </li></ul><ul><li>+Highly inclined from ecliptic </li></ul><ul><li>= comet </li></ul>
  18. 18. Haumea <ul><li>A plutoid </li></ul><ul><ul><li>Dwarf planets beyond Neptune </li></ul></ul><ul><li>Named after the goddess of the island of Hawaii </li></ul><ul><li>Has two known moons </li></ul>
  19. 19. Haumea - Discovery <ul><li>Discovered in 2004 by Mike Brown at CalTech </li></ul><ul><li>Discovery first announced by a Spanish team …BUT! </li></ul><ul><li>They stole the data </li></ul><ul><li>Accepted as a dwarf planet on September 17, 2008. </li></ul>
  20. 20. Haumea’s Shape <ul><li>Spins very fast </li></ul><ul><ul><li>A rotation in 4 hours </li></ul></ul><ul><li>This rotation causes it to deform </li></ul><ul><li>Formed into football shape </li></ul>
  21. 21. Haumea – the numbers <ul><ul><li>Orbital Period: 285 years </li></ul></ul><ul><ul><li>Diameter: ~1400Km </li></ul></ul><ul><ul><li>Semi-major axis: 43.1 AU </li></ul></ul><ul><ul><li>Temperature: <50 K </li></ul></ul>
  22. 22. Makemake <ul><li>Plutoid </li></ul><ul><li>Named for the creator god of Easter Island </li></ul><ul><li>No known satellites </li></ul><ul><ul><li>Unique among large KBOs </li></ul></ul>
  23. 23. Makemake - Discovery <ul><li>Discovered in 2005 by Mike Brown at CalTech </li></ul><ul><li>Further from ecliptic than other dwarfs </li></ul><ul><li>Accepted as a dwarf planet on July 11, 2008. </li></ul>
  24. 24. Makemake – the nubmers <ul><ul><li>Orbital Period: 309 years </li></ul></ul><ul><ul><li>Semi-major axis: 43.1 AU </li></ul></ul><ul><ul><li>Inclination: 29º </li></ul></ul><ul><ul><li>Diameter: 1500Km </li></ul></ul><ul><ul><li>Temperature: 30-35 K </li></ul></ul>
  25. 25. Eris <ul><li>Largest dwarf planet in solar system </li></ul><ul><li>27% more massive than Pluto </li></ul><ul><li>Named for Greek goddess of discord </li></ul>
  26. 26. Eris - Discovery <ul><li>Discovered in 2005 by Mike Brown at CalTech </li></ul><ul><li>Called the &quot;tenth planet” in media reports </li></ul><ul><li>Originally named Xena </li></ul><ul><li>Accepted as a dwarf planet on September 13, 2006. </li></ul>Eris? Really? Me again.
  27. 27. Eris – The numbers <ul><ul><li>Orbital Period: 557 years </li></ul></ul><ul><ul><li>Semi-major axis: 68 AU </li></ul></ul><ul><ul><li>Diameter: 2400? Km </li></ul></ul><ul><ul><li>Temperature: 42.5 K </li></ul></ul><ul><ul><li>1 known moon </li></ul></ul><ul><ul><ul><li>Dysnomia </li></ul></ul></ul>
  28. 28. Other Trans-Neptunian Objects
  29. 29. Pluto’s Demise

×