comets, asteroids and meteors
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Comets, Asteroids and Meteors
Chapter 20
A loose collection of ice, dust and small rocky particles
Orbits are very long and narrow ellipses Comprised of 2 parts: Head and Tail Originate from either Kuiper belt or Oort
cloud
Comets
Two Parts: Head and Tail Comet’s Head: Comprised of Coma and
Nucleus Brightest part of comet
Nucleus is the solid inner core Coma: Clouds of gas and dust
Coma created by Suns energy Comet Tail: Sun heats up gas and dust of comet
creating tail Tail always points away from Sun
Anatomy of a Comet
Comet
Comet
Comet
Comet in orbit
Asteroids: rocky objects too small to be considered Planets
Revolve around Sun between Mars and Jupiter Asteroid Belt
Asteroids
Asteroids
Asteroids
Asteroids
Meteoroids: Chunks of rock or dust in space Come from comets or asteroids
Meteor: Created as a meteoroid enters the atmosphere
Meteorite: Meteoroids that pass through atmosphere and hit Earths Surface
Meteoroids
Meteor
Meteor Shower
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