Dwarf Planets - Science@NASA
Our solar system has five dwarf planets. In order of distance from the Sun they are: Ceres, Pluto, Haumea, Makemake, and Eris. Pluto and other dwarf planets are a lot like regular planets. So what’s the big difference? The International Astronomical Union (IAU), a world organization of astronomers, came up with the definition of a planet in 2006.
Dwarf planet - Wikipedia
A dwarf planet is a small planetary-mass object that is in direct orbit around the Sun, massive enough to be gravitationally rounded, but insufficient to achieve orbital dominance like the eight classical planets of the Solar System.
Dwarf planet | Definition, Characteristics, & Facts | Britannica
2024年12月5日 · Dwarf planet, body, other than a natural satellite (moon), that orbits the Sun and that is, for practical purposes, smaller than the planet Mercury yet large enough for its own gravity to have rounded its shape substantially. Learn more about dwarf planets in this article.
About the Planets - Science@NASA
The solar system has eight planets: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, and Neptune. There are five officially recognized dwarf planets in our solar system: Ceres, Pluto, Haumea, Makemake, and Eris.
Meet the Solar System's five official dwarf planets
2023年4月19日 · The IAU currently recognizes five dwarf planets: Ceres, Pluto, Haumea, Makemake, and Eris. Ceres lies in the main asteroid belt between Mars and Jupiter, while the rest are in the Kuiper Belt. There are almost certainly more dwarf planets. Unfortunately, most are very far away, and we can’t definitively prove that they are round.
Dwarf Planets: Science & Facts About the Solar System’s ...
2017年10月28日 · Meet the dwarf planets of our solar system, Pluto Eris, Haumea, Makemake and Ceres. (Image credit: Karl Tate, SPACE.com contributor) As of 2014, the IAU recognizes five named dwarf planets:...
Dwarf Planets Dwarf Planets - Laboratory for Atmospheric and ...
The only difference between a planet and a dwarf planet is the area surrounding each celestial body. A dwarf planet has not cleared the area around its orbit, while a planet has. Since the new definition, three objects in our solar system have been …
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