Technically, the new 10th planet is called Pluto.
The easily visible planets (Mercury, Venus, Mars, Jupiter, and Saturn, plus Earth) all have names dating from Roman times.
Uranus was discovered in 1781 by William Herschel, making it the 7th planet. He named it "George's Star" after King George. The French called it "Herschel" after its discoverer and Herschel was the most common name for it until 1850.
In the early 1800's, four new planets were discovered: Ceres (8th planet), Pallas (9th planet), Juno (10th planet), and Vesta (11th planet). All four new planets were in the asteroid belt. With the number of planets up to 11 and more 'planets' in the asteroid belt being discovered all the time, astronomers began to think they'd made a mistake by allowing asteroids in the planetary club.
When Neptune was discovered in 1846 and needed a name, it was decided that all planets should be named after gods from Greek or Roman mythology. Herschel was renamed "Uranus". At the same time, all of the asteroids were demoted from planetary status, bringing the number of planets back down to 8. So Neptune was the 8th planet.
Pluto was discovered and became the 9th planet in 1930.
And, actually, we have 12 planets now (or will as soon as the International Astronomical Union votes on it).
Ceres has been repromoted to planetary status, so I guess Ceres is the new 8th planet, if you count chronologically by discovery (if by location, it's the new 5th planet). Neptune is the new 9th planet and Pluto is the new 10th planet.
Pluto's 'moon', Charon, will be promoted to the 11th planet since both Pluto and Charon actually orbit a point in space outside both objects.
And the newest 12th planet is technically called 2003 USB 313, although it's informally called Xena. Xena won't be its formal name, since all planets are named after gods from Greek or Roman mythology. Its formal name is yet to be decided.
2006-08-16 10:25:05
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answer #1
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answered by Bob G 6
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Xena if it is decided...They are actually thinking of adding two above that. Ceres and Charon. Ceres is a round planet like asteroid that would fit the new defiintion of a planet. Charon is a moon of pluto that would also qualify under the new definition.
Chibi -- The person that discovers an astro-body gets to name it. So, appearently the guy like Xena the warrior princess.
2006-08-16 17:01:11
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answer #2
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answered by Anonymous
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IT hasnt been decided yet.. the vote will be on the 24th to decide if Charon ( which i though was a moon of pluto but it meets planetary standards) Ceres ( in the asteriod belt but meets standards) And Xena ( farthest orbiting object in the solar system) are going to be planets... I think Xena and Ceres are but not Charon
2006-08-16 17:03:28
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answer #3
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answered by iceman62493 2
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As everyone else said, Xena, though I'm not convinced it should be called a planet nor am I convinced that the other two in question or even Pluto should be called planets because of the properties of their orbits. But I guess it depends on your definition of a planet...
2006-08-16 17:20:46
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answer #4
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answered by bcabe111 3
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The 10th planet xena.
2006-08-16 17:53:29
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answer #5
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answered by LANCE 2
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Xena.
Little info:
It was named after the protagonist of the TV series” Xena, Warrior Princess” -- is an object whose size hasn’t been precisely determined, but it could be about 1.5 times the size of Pluto. That makes it a frozen world perhaps a little smaller than our Moon, but one much farther away.
P.S. I wondered if we ever getting the 11th, 12th or 13th planet in our life...
2006-08-16 17:26:27
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answer #6
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answered by Bookworm619 2
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Pluto. There are, as of yet, no new planets in our solar system . No decision has been made as to the fate of a resolution to add the proposed three new planets.
2006-08-16 17:14:18
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answer #7
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answered by J to the P 2
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Xena
2006-08-16 17:22:20
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answer #8
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answered by Krissy 6
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Xena
2006-08-16 17:01:12
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answer #9
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answered by Christos :) 2
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Xena is the one you are referring to however that name has not been agreed to by the international board that decides such things; it's just the popular name it's got right now.
Also its moon is called Gabrielle, also unofficial.
2006-08-16 17:17:47
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answer #10
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answered by ? 5
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