Hydra is one of 5 moons of Pluto. Hydra is irregular in shape, 55 by 40 kilometers (34.2 mi × 24.9 mi)in cross-section from one side
No it is Charon
Pluto only has one moon and i don't think it is even a moon its a dwarf planet along with Pluto
Yes. Charon, Plutos largest moon, is about 1200km in diameter, while Plutos diameter is around 2322km, so Plutos diameter is about twice the size. In terms of volume though, Pluto is around 7.4 times as big.
Pluto has 3 known moons (as of 2011) Pluto's largest moon is Charon. The smaller moons are Nix and Hydra.
Pluto's moon Charon
Pluto's largest moon is named Charon. It was discovered in 1978 by astronomer James Christy. Charon is about half the size of Pluto and they are tidally locked, meaning they always show the same face to each other.
Pluto has three natural satelites.Nix,Hydra,and Charon are Plutos moons.
Charon
Pluto has one moon: Charon. The others are Nix and Hydra.
Pluto has a diameter of approximately 2,377 kilometers, which is about 18.5% of the diameter of Earth. It is classified as a dwarf planet.
hydra pluto's moon was discovered on June 15th 2005 by Max J. Mutchler
Pluto now has 5 known moons. The main one is Charon. The others are Hydra, Kerberos, Nix and Styx.