Asteroid belt(2) Important asteroid

 There are many asteroids on the Asteroid belt, but big asteroids(Radius is bigger than 100km)is only 32. Sphere asteroids are very few. Most of asteroids don't have enough gravity to keep its body sphere. We should know about big asteroid

1.Ceres

Ceres is the biggest asteroid. Ceres have sphere body, so once it thought planet. But Ceres is dwarf planet.


Radius:487.3km
Mass:(9.43±0.07)×10²⁰ kg
Gravity:0.27 m/s²
Escape velocity:0.51 km/s