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Trans-Neptunian Objects

TNOs circle the Sun at distances beyond Neptune, often with extremely elliptical orbits.  On the scale of this solar system diagram, this marker represents the inner edge of the Kuiper Belt, as well as the approximate distance of several different TNOs:
  • Pluto’s average distance from the sun;
  • The perihelion of Eris;
  • Other dwarf planets — including Haumea, Makemake, Quaoar, and Gonggong — are sometimes this distance from the sun.

You can view these links to learn more about TNOs and dwarf planets:
  • Kuiper Belt (NASA)
  • Dwarf planets (NASA)
  • TNOs (Wikipedia)

The Pluto image on this page was taken in 2015 by the New Horizons probe, and is courtesy of NASA/Johns Hopkins University Applied Physics Laboratory/Southwest Research Institute.

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  • Home
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    • Portable
    • Permanent >
      • Site-specific
  • Resources
  • Objects
    • Mercury demo
    • Saturn demo
  • Contact
    • About