Physics Solar system

Physics Solar system

1. Planets

   • Rocky/Terrestrial
     • 1. Mercury
     • 2. Venus
     • 4. Mars
     • 3. Earth
   • Gas giants
     • 6. Jupiter
     • 7. Saturn
     • 8. Uranus
     • 9. Neptune
   • Dwarf
     • 5. Ceres
     • 10. Pluto
     • 11. Hammea
     • 12. Makemake
     • 13. Eris

2. Stars

   • The Sun
     • 300,000x mass of the Earth
     • Ordinary Star
     • Made of 75% Hydrogen, 24% Helium and 1% other elements
   • Life of a star
     • 1. A Nebula (mostly ma de of hydrogen gasses)
     • 2. Protostar (gravity causes nebula to collapse)
     • 3. Becomes main sequence star
     • 4. Red Giant star
     • 5. Planetary Nebula (outer layers of the star blow off)
     • 6. White dwarf
   • High mass stars
     • Become Red Super Giants
     • Eventually become too unstable and explode and form a super nova
       • 1. Neutron star
       • 2. Black hole

3. Milky Way

   • Contains 200-300 billion stars
   • Made up of stars, dust, gas and dark matter
   • Sun orbits Milky Way every 250 million years
   • Size is 100,000 light years across
   • Is a spiral galaxy