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Other Solar System Objects. Chapter 28.4. Kuiper Belt. Kuiper Belt Lying outside of Neptune's orbit (40AU) Eris – example of planetary bodies similar to Pluto Should it be a tenth planet? Objects most likely formed in this area Asteroid Belt lies between Jupiter and Mars

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Kuiper belt
Kuiper Belt

  • Kuiper Belt

    • Lying outside of Neptune's orbit (40AU)

    • Eris – example of planetary bodies similar to Pluto

      • Should it be a tenth planet?

    • Objects most likely formed in this area

  • Asteroid Belt lies between Jupiter and Mars

    • Thought that planets never formed due to gravitational pull of Jupiter


How about pluto
How about Pluto?

  • Made of rock and ice

    • Different than both terrestrial and gas planets

  • Long orbit

    • Crosses Neptune’s orbit

    • Hasn’t been seen to make a complete orbit yet

    • 3 moons with orbits at sharp angles to the elliptical plane


New classification
New classification

  • Dwarf planet

    • Has its own gravity

    • Spherical

    • Orbits the sun

    • Includes

      • Pluto

      • Eris

      • Ceres – in Asteroid built

    • Many more objects are under debate


Asteroids
Asteroids

  • Thousands in the asteroid belt

    • Rocky, irregular shaped, pitted bodies

    • Many have small satellites orbiting them

  • Fragments of asteroid

    • Meteoroid – small fragment of an asteroid

    • Meteor – streak of light as meteoroid passes through earth’s atmosphere and burns

      • Shooting star

    • Meteorite – hits the earth


Comets
Comets

  • Small icy bodies

  • Extremely eccentric orbits

  • 1 to 10 km in diameter

  • Occasionally passes into the inner solar system

    • Pulled by gravity of objects in the solar system


Comets1
Comets

  • They come close to the sun

    • Begins to evaporate

    • Forms a head and one or two tails

    • Solid core surrounded by gas and dust particles

    • Blown by the sun’s radiation, causing the bright tail


Meteor shower
Meteor Shower

  • Earth enters an area where the comet had passed

  • Particles left behind from the comet burn as they enter the earth’s atmosphere


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