Asteroid Shapes and Sizes: From Tiny Pebbles to Giant Boulders

Most asteroids have irregular shapes, with rough surfaces and many craters.

Ceres, with a diameter of approximately 950 kilometers, is the largest asteroid in the asteroid belt.

2015 TC25, with a diameter of only 1.2 meters, is the smallest known asteroid.

Ida is the only asteroid known to have a moon, named Dactyl.

Most asteroids in the asteroid belt have diameters ranging from 1 to 10 kilometers.

Eros is an elongated asteroid with dimensions of approximately 33 x 13 x 13 kilometers.

Craters are common surface features on asteroids, formed by impacts from other asteroids or comets.

Itokawa's surface is covered in large boulders, ranging in size from a few meters to tens of meters.

Mineralogy refers to the composition of asteroids, which can include various minerals such as silicates, metals, and ice.

Vesta has a composition similar to that of Mars, with a surface rich in basaltic rocks.

Albedo refers to the brightness of asteroids, which is determined by the reflectivity of their surfaces.

Vesta has the highest albedo in the asteroid belt, with a value of approximately 0.42.

Period refers to the rotation of asteroids, which is the time it takes for an asteroid to complete one full rotation.

Eros has the shortest rotation period among known asteroids, completing one full rotation in approximately 5.27 hours.

Semi-major axis refers to the orbital characteristics of asteroids, which is the average distance between an asteroid and the Sun.