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Pluto (minor-planet designation: 134340 Pluto) is a dwarf planet in the Kuiper belt, a ring of bodies beyond the orbit of Neptune. It is the ninth-largest and tenth-most-massive known object to directly orbit the Sun. It is the largest known trans-Neptunian object by volume, by a small margin, but is less massive than Eris.
It is about half the diameter and an eighth the mass of Pluto, a dwarf planet that resides in a frigid region of the outer Solar System called the Kuiper Belt, beyond the most distant planet Neptune.
Composite exaggerated-color image of Pluto and its moon Charon.Separation not to scale 4 Vesta, an asteroid that was once a dwarf planet [4]. Starting in 1801, astronomers discovered Ceres and other bodies between Mars and Jupiter that for decades were considered to be planets.
An impassioned defense of Pluto's status as a planet. [citation needed] Thing a Week, August 25, 2006 podcast by Jonathan Coulton. Featured a song "I'm Your Moon", from Charon's point of view, about Pluto being reclassified as a dwarf planet. [citation needed] "Bring Back Pluto" (2007), song by Aesop Rock on the album None Shall Pass. Hip-hop ...
Pluto likely acquired large moon Charon in a “kiss and capture” collision billions of years ago. It may have created a subsurface ocean on the icy dwarf planet.
The dwarf planet Pluto, which is smaller than Earth's moon, orbits about 3.6 billion miles away from th. It's not just the air on Pluto that is cold -- the volcanoes on the dwarf plant are frigid ...
The largest known trans-Neptunian objects are Pluto and Eris, followed by Haumea, Makemake, Gonggong, Quaoar, Sedna, and Orcus, all of them being officially recognized as dwarf planets by the IAU except for Gonggong, Sedna, and Orcus. There are also many possible dwarf planets, such as Salacia, (307261) 2002 MS 4, Varda, Ixion, and Varuna.
Pluto was considered a planet up until 2006, when researchers at the International Astronomical Union voted to "demote" it to dwarf planet.