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Protoplanets And Planetesimals

Published on Nov 19, 2015

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PRESENTATION OUTLINE

1.

PROTOPLANETS

THE PRE-PLANET STUFF
2.

PROTOPLANETS

  • Small celestial objects that form during solar system creation
  • Could become a planet with time but most melt due to radioactivity, gravitational influences, and collisions
  • Studied because they display solar system creation history
3.

QUESTIONS

  • Was Earth a protoplanet?
  • Some astronomers believe Earth is currently the "new" formation by a protoplanet
  • What is a protoplanet made of?
  • A theroretical mass of gas and dust
4.

4 VESTA

A SURVIVING PROTOPLANET
5.

HOW THEY FORM

IMPACT THEORY
6.

PLANETESIMALS

THE PLANET STUFF
7.

PLANETESIMALS

  • They are small objects that orbit around the sun and eventually collide
  • With other planetesimals to form planets
  • They exist in the earlier stages of solar system creation
  • Earth is theorized to be formed by colliding planetesimals
8.

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Devin Pinney