As far as we can tell, 65-80% of the surface is covered in crystalline water ice. The rest is likely rocky.
No. Haumea is not classified as a planet. It is a dwarf planet.
Of note, first, Haumea is a dwarf planet, not a planet. Although very little is known about its surface, it is highly unlikely that it has any volcanoes.
Haumea is a rocky, terrestrial dwarf planet.
According to windows2universe.org, the surface gravity of the dwarf planet Haumea is 0.44 meters/second squared. (This is compared to Earth's gravity of 9.807 m/s squared).
No. Haumea is a dwarf planet and in terms of composition is more similar to a comet.
The dwarf planet Haumea (located in the Kuiper Belt) has 2 moons.
Ceres, Pluto, Haumea, Makemake and Eris.
No, they are two different "dwarf Planets".
Yes, according to the current definitions, Pluto is considered a "dwarf planet" along with 4 other dwarf planets.
The equatorial surface gravity on the Plutoid dwarf Haumea is estimated at 0.44 m/s2 . That's 4.49% of Earth's. If you weigh 200 pounds on Earth and somehow scored a ride to Haumea, you'd weigh just about 9 pounds there.
Makemake is the second dwarf planet from Pluto (moving away from the sun). The only dwarf planet in between the two of them is Haumea.
It's a dwarf planet.