Pluto

  • Pluto is a dwarf planet in the Kuiper Belt region of the Solar System. It is the second-largest known dwarf planet next to Eris, and was considered a full-fledged planet until 2006.
  • Demotion

    In 2006, the International Astronomical Union altered the standards for what makes an object a planet. It established three criteria that the object must meet:

    1. Must orbit the Sun
    2. Must generate significant enough gravity to force a roughly spherical shape
    3. Must have cleared other objects out of its immediate area in space

    Pluto did not satisfy the third criterion, and was thus downgraded to a dwarf planet.NASA-JPL: Pluto - Overview

  • On Twitter Powered by Twitter

About this page

  • Page Views
    0
What is this?
No one is currently managing this page.
What is this?
This page currently has no vertical manager.