ASTR 105 Lecture Notes - Lecture 2: Oort Cloud, Kuiper Belt, Aurora
Lab AST 105 Lecture Notes 2:
• What are Asteroids?
• Rocky leftovers of planet formation (planetismals).
• Describe the shape of Asteroids.
• Cratered and not round.
• Where is the Asteroid belt?
• In between Mars and Jupiter.
• Why don't asteroids in the belt accrete in to a planet?
• Jupiter's gravity, through influence of orbital resonances, stirred up asteroid orbits and
prevented their accretion into a
• planet.
• What is a meteorite?
• A rock from space that falls through the Earth's atmosphere.
• What is a meteor?
• The bright trail left by a meteorite.
• What are trojan asteroids?
• Asteroids that follow Jupiter's orbit
• What is the Great Red Spot?
• A massive storm, twice the size of earth, that occurs at Jupiter's lowest atmosphere.
• What is Io?
• The most volcanically active body in the solar system, Io is the innermost moon of
Jupiter.
• What is tidal heating?
• The effect that Jupiter's innermost moon, Io, experiences as it orbits Jupiter from the
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