# The asteroid Ceres has a mass of 7 1020 kg and a radius of 500 km What is g on the surface of Ceres?

g=GM/r2 N m2/kg2

G=6.672x10-11

M=7*1020kg

r= 500,000 m

g=1.8x10-1 m/s2

about 0.02 g

10*1015power of 45

### What is the mass of the largest asteroid?

The dwarf planet Ceres is by far the most massive asteroid, constituting nearly 1/3 of the total mass of the asteroid belt : 9.43 x 1020 kg (about 1 quintillion tonnes). This is, however, only 1/70th the mass of Earth's Moon. The next largest asteroids are Vesta (about 1/4 the mass of Ceres at 2.59 x 1020 kg) Pallas (about 1/5 the mass of Ceres at 2.11 x 1020 kg)

### What is the surface gravity of the planet Ceres compared to earth?

One of the largest asteroids, Ceres was discovered in 1801. With its estimated average radius of about 461 km, and its estimated mass of 9.43 x 1020 kg (0.00015 of Earth's mass, 0.0128 of the Moon's mass), the acceleration of gravity on its surface is estimated at 0.27 m/s2, or 2.8% of its value on the Earth's surface. If you weigh 150 pounds on Earth, you'll weigh about 4pounds 2.1ounces on Ceres.