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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.
Pluto holds a key because "they say that what is called Hades has been locked up by Pluto, and that nobody will return back again therefrom." [ 91 ] Natale Conti cites Pausanias in noting that keys are an attribute of Pluto as the scepter is of Jove (Greek Zeus) and the trident of Neptune (Poseidon).
[6] [a] Charon and Pluto are also tidally locked, so that they always present the same face toward each other. The IAU General Assembly in August 2006 considered a proposal that Pluto and Charon be reclassified as a double planet, but the proposal was abandoned. [7] Like Pluto, Charon is a perfect sphere to within measurement uncertainty. [8]
For instance, for a large portion of names ending in -s, the oblique stem and therefore the English adjective changes the -s to a -d, -t, or -r, as in Mars–Martian, Pallas–Palladian and Ceres–Cererian; [note 1] occasionally an -n has been lost historically from the nominative form, and reappears in the oblique and therefore in the English ...
Pluto was considered a planet up until 2006, when researchers at the International Astronomical Union voted to "demote" it to dwarf planet.
Pluto is grey, Orcus is red, and Neptune is the white (stationary) dot at 5 o'clock. Uranus is blue, Saturn yellow, and Jupiter red. Orbits and sizes of the larger plutinos (and the reference non-plutino 2002 KX 14 ).
New Horizons has provided scientists with a new surprise: Pluto has a tail.
Pluto first appeared as a nameless bloodhound tracking the escaped convict Mickey in the film The Chain Gang, which released on August 6, 1930. [11] On October 23 of that same year, The Picnic was released.