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Bell 9/23

Bell 9/23. List the Jovian planets in order of increasing mass. Objectives: Relate the  composition  of objects in the solar system to their distance from the Sun . Compare the size and  scale  of objects within the solar system. . Announcements. Test and exam retakes due Friday 9/26

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Bell 9/23

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  1. Bell 9/23 • List the Jovian planets in order of increasing mass. • Objectives: • Relate the composition of objects in the solar system to their distance from the Sun. • Compare the size and scale of objects within the solar system. 

  2. Announcements Test and exam retakes due Friday 9/26 Astronomer Research Project Due Last day for late work: 9/26 Solar System Quiz: Thursday (Next Class)

  3. Dwarf Planets Estimates of up to 200 dwarf planets 5 officially recognized

  4. Asteroids Chunks of rock Jupiter's Gravity:

  5. Comets Made of Ice and Dust

  6. Comet's Orbit

  7. Short and Long Period Comets • Long Period: • Greater than 200 years • Oort Cloud • Short Period: • Less than 200 years • Kuiper Belt

  8. Next Comet • Comet Siding Spring: October 25th 2014 • Might hit Mars on October 19th • Comet Finlay: December 27th • .048 Au from earth • The Moon is 0.002 AU from earth

  9. Meteoroid, Meteor, Meteorite • Meteoroid: • Small rocky particle in space • Meteor: • A streak of light in earth’s atmosphere • Meteorite: • Meteor that strikes a planet or a moon • Impact crater: • Round depression formed on the surface of a planet by the impact of a meteorite.

  10. Impact Craters Meteor Crater Arizona 1 mile across Acraman Crater South Australia 59 miles across

  11. Scale of the Solar System

  12. The Solar System Scale Solar System

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