What are the 3 new planets?

Answer 1

Charon, Ceres, Xena

Answer 2

One possible new planet ('Xena').

Two known objects that may be reclassified as planets.

Ceres, currently classified as an asteroid.

Charon, currently classified as a moon of Pluto.

I would say that the following are minimum characteristics of planets.

1 & 2 below are arbitrary, you may prefer other variables.

1. Minimum Mass. 10^20 Kg. (about 1/100th the mass of Pluto).

2. Minimum Diameter. 1,500 Km (about 900 miles)

3. Orbit. Must be in orbit around a sun, and not a planet (therefore, Luna is not a planet, even though it's larger than Pluto).

4. Distance from sun. Not relevant, as long as it is clearly in orbit around the sun. Therefore, a massive sun may have planets dozen's of light-years away.

5. Is not itself a sun. That would be a binary or higher system.

6. Must not be in interstellar space, not associated with a sun or suns.

7. Not in a field of other bodies with the same approximate orbit. That would leave out anything in the Asteroid Belt and Oort Cloud.

Now, how about "Xena" (aka, 2003 UB313)? To Hades (Greek God of the underworld) with conventions for naming planets. Xena is perfect. And Gabrielle for the moon. If they can name a comet "Hale-Bopp" why not a planet after the Warrior Princess.

Now, I disagree with Charon and Ceres getting a promotion.

One shares an orbital field with thousands of smaller objects that have more mass in total that Ceres.

The other circles a planet, it's a moon.

If Charon is a planet, then what about Luna and some moons of Jupiter and Saturn?

Answer 3

Ceres and Xena , Pluto has finally been added to the list as a planet . After many years of debate . Under the new rules for a planet , if it is spherical in shape and is over 500 miles in diameter it is now considered a planet !!! Many more planets to come .

Answer 4

Charon, Ceres, and 2003 UB313, which is obviously going to get a better name (they're currently calling it Xena)

Or do you mean what _are_ they?

Charon is a twin planet to pluto, they used to consider it a moon, but it's very big, nearly as big as pluto. Ceres is the largest asteroid, and the only one big enough to have enough gravity to make it round (like a planet is round). It's in the asteroid belt between Mars and Jupiter.
The other one, is out further than pluto, and is quite recently discovered, which is why it doesn't have a proper name yet.

Answer 5

The new planetary lineup would include 2003 UB313, the farthest-known object in the Solar System and nicknamed Xena, as well as Pluto's largest moon, Charon and the asteroid Ceres

Answer 6

Charon (Twin Planet to Pluto)
Xena
Ceres

Answer 7

I'd like to know that too. Chiron, which is a small planetoid,
and recognized in Astrology. Was recently made an official
planet. And I heard they discovered a small planet past Pluto. The 3rd one, I haven't heard of.

Answer 8

These 3 planets are being questioned, though, by the IAU, who are meeting in Prauge Thursday. For more information visit:

news.bbc.co.uk
/1/hi/sci/tech/4795755.stm

Answer 9

2003 UB313-Xena,
CHARON- LARGEST MOON OF PLUTO
CERES- THE ASTEROID.
In the order of their proximity to the sun the planates would be:
mercury
venus
earth
mars
ceres
jupiter
saturn
uranus
naptune
pluto
charon
2003 UB313(Xena-nicknamed after the warrior princess of TV fame.

Answer 10

Larry, Moe, and Curley