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What Are Trans-Neptunian Objects?

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question 1 of 3

A trans-neptunian object like Pluto, which is found in a 2:3 orbital resonance with Neptune, is called a:

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1. This is a region of space, filled with small, icy bodies, which is found stretching from 30 AU (just beyond the orbit of Neptune) to at least 100 AU from the sun:

2. These are small planetary bodies whose orbits are found beyond the orbit of Neptune:

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While the asteroid belt is the better known group of small objects in our solar system, beyond Neptune there is a different cluster of objects known as Trans-Neptunian objects. This quiz/worksheet combo will help you test your understanding of this type of planetary body. Some things you'll be assessed on include what an object found in a 3:2 orbital resonance with Neptune is called, the names for specific regions of space, and the term for small planetary bodies whose orbits are found beyond the orbit of Neptune.

Quiz & Worksheet Goals

In these assessments you'll be tested on:

  • Objects found in a 3:2 orbital resonance with Neptune
  • Names for specific regions of space
  • Small planetary bodies whose orbits are found beyond the orbit of Neptune
  • Term for specific planetary bodies
  • Where most TNOs are found

Skills Practiced

  • Information recall - access the knowledge you've gained regarding Trans-Neptunian objects
  • Knowledge application - use your knowledge to answer questions about relevant astronomical terms and locations in our solar system
  • Interpreting information - verify that you can read information on celestial bodies orbiting the sun and interpret it correctly

Additional Learning

To learn more about this type of planetary body, review the accompanying lesson called What Are Trans-Neptunian Objects? This lesson covers the following topics:

  • The asteroid belt
  • Trans-Neptunian objects
  • Kuiper Belt objects and Plutinos
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