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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's reign. For decades, students learned the phrase "My Very Educated Mother Just Served Us Nine Pizzas" to remember the order of the planets in the solar system: Mercury, Venus, Earth, Mars ...
The Italian form of the name is Pluto, taken by some commentators [195] to refer specifically to Plutus as the god of wealth who would preside over the torment of those who hoarded or squandered it in life. [196] Dante's Pluto is greeted as "the great enemy" [197] and utters the famously impenetrable line Papé Satàn, papé Satàn aleppe.
Keith Emerson Band used "Jupiter, the Bringer of Joy" for their song "Marche Train". Manfred Mann's Earth Band used "Jupiter, bringer of joy" for his song "Joybringer". [22] The 1985 album Beyond the Planets, by Jeff Wayne, Rick Wakeman and Kevin Peek (with narration by Patrick Allen), is a rock arrangement of the entire suite. [23]
For 76 years, Pluto was considered our solar system's ninth planet — so, what caused it to lose its status?
Pluto's influence on the other plutinos has historically been neglected due to its relatively small mass. However, the resonance width (the range of semi-axes compatible with the resonance) is very narrow and only a few times larger than Pluto's Hill sphere (gravitational influence).
Pluto was considered a planet up until 2006, when researchers at the International Astronomical Union voted to "demote" it to dwarf planet.
For 76 years, Pluto was considered out solar system's ninth planet. So what caused it to lose its planetary status? Find out on this episode of "Space, Down to Earth"!