Is a dwarf planet bigger than a moon?

Answer 1

Generally not, as asteroids generally are not massive enough to make themselves round with their own gravity. The only possible exception is the dwarf planet Ceres, which was classified as an asteroid for much of the time that people knew of it.

Answer 2

no. Earth is a planet.

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Additional information:

A Dwarf planet is a term that was adopted in 2006 to resolve the issue with Pluto/Charon and several other Kuiper Belt objects. This came about because of the discovery of Eris, another Kuiper Belt object that is larger than Pluto. Astronomers did not want to call it the 10th planet. So they debated about this for years. Niel deGrasse Tyson, director of the Hayden Planetarium, fired the first salvo and demoted Pluto to a Kuiper Belt object (see Pluto Files). Eventually the International Astronomical Union created a new class of object that 1) Revolves around the sun, not another planet 2)is large enough to be round due to gravitational attraction (larger than about 300 to 400 km in diameter depending on its make-up) but has not cleared it's neighborhood. This means that there are other objects in the same area as the dwarf's orbit.

There are 6 dwarf planets recognized by the IAU right now. The list will eventually grow to thousands as the definition is tweaked.

Pluto/Charon (Charon is Pluto's moon, but Charon is about half the size of pluto. It's a binary planet)

Eris

Ceres (an object in the asteroid belt between Mars and Jupiter)

Haumea (shaped like a cigar, but larger than Pluto - First non-round dwarf planet recognized) This is a Kuiper Belt Object.

Makemake (Kuiper Belt Object)

Sedna (an Ort Cloud object - beyond the Kuiper Belt) is not yet classified as a dwarf planet by the IAU, but it meets the definition.

Answer 3

The definition of a dwarf planet is not based on size. The dwarf planets of the solar system are larger than most of the moons in the solar system, but still smaller than the largest of them. Pluto, the largest known dwarf planet is smaller than our moon.

Answer 4

There is none. The dwarf planet Eris was once thought to be somewhat larger than Pluto. More accurate measurements show it is slightly smaller, but has more mass.

Answer 5

no dwarf planets are smaller the Earth and the other planets.

Answer 6

A black dwarf would range in size from slightly smaller than Earth to about twice Earth's diameter. Currently the universe is not old enough for a white dwarf to have cooled to a black dwarf.

Answer 7

Eris is thought to be the largest of the five dwarf planets, with an estimated diameter of around 2600 km. Pluto's diameter is estimated to be around 2300 km.

Answer 8

yes, but sometimes dwarf planets can be smaller but most of the times they are larger