Are there any other dwarf planets in the solar system besides Pluto?

Answer 1

There are 3 dwarf planets as of the International Astronomical Union motion of 24 August 2006, which created that category and defined what an object had to be and do to be included in it.

The three (with their Minor Planet Catalogue numbers) are

1 Ceres (in the asteroid belt inbetween Mars and Jupiter). Orbital Period: 4.599 years

134340 Pluto, a Kuiper Belt Object (KBO). Orbital Period: 248.09 years

and 136199 Eris (a Scattered Disk object (the Scattered Disk lies beyond the Kuiper Belt). Orbital Period: 557 years

In addition there are a dozen or more candidates to be considered for election to Dwarf Planet status at a future IAU congress when more detail is known about them.

These include three more asteroids (the next three largest ones): Pallas, Vesta and Hygiea and the following Trans-Neptunian Objects (TNOs): 2005 FY9 ("Easterbunny"), Orcus, Sedna, 2003 EL61 ("Santa"), Quaoar, 2002 TC302, Varuna, 2002 UX25, 2002 TX300 and Ixion.

And also Pluto's largest moon, Charon, which may be regarded as a binary dwarf planet along with Pluto, once a definition of a binary dwarf planet has been agreed by an IAU congress.

Answer 2

Yes. There are officially 2 more; Eris and Ceres. Ceres is the biggest asteroid in the main belt between Mars and Jupiter. Eris it the object bigger than Pluto that was discovered out past Pluto. Eris was unofficially called Xena for a while. Its discovery sparked the whole debate that resulted in demoting Pluto from planet to dwarf planet. That same decision dubbed Eris a dwarf planet and promoted Ceres from asteroid to dwarf planet.

Answer 3

Yes, there are other dwarf planets out there besides Pluto, one of whom is actually larger and more massive than the former 9th planet. That distinction goes to Eris, which has a moon called Dysnomia. Other big Kuiper Belt objects include Varuna, Sedna, and Quaoar which is almost as big as Pluto.

Answer 4

By the International Astronomical Union definition, there are currently 3 named dwarf planets: Ceres, Pluto and Eris.

Although several other Kuiper Belt objects like 2005FY9 might qualify as well.

Answer 5

The answer is yes, and the folks above have named the ones we know about. There's a possibility of some *50* other dwarf planets, Pluto-size or larger, that also might orbit the sun.

Answer 6

Since August 2006, Pluto in no longer officially considered to be a planet. This is precisely due to the fact that there are too many objects just like it. See link for a summary:

Answer 7

Yes. Pluto was the first discovered--but many others have been found. They make up what's called theKyber belt--the region out beyond Neptune's orbit wheere, it turns out, there are a lot of objects. Pluto is the closest--whichis why it was discovered first. But it's not even the largest--one has been found that's even larger, and there may be others.

Answer 8

There are thousands if not millions of "Planetesimals" in the Kuiper belt beyond Pluto, as well as in the asteroid belt between Mars and Jupiter. "Ceres" is one of these, as is the KBO (Kuiper belt object) "Xena" that was briefly touted as "planet 10".

Answer 9

No, but they are other objects almost as big as Pluto, but they are not called planets.
These objects are in the Kipper belt, I think that is the way the spell it.

Answer 10

eris, sedna, and ceres
they are some of the candidates for the tenth planet in our solar system
for more detailes look and search the wikipedia