SOLAR SYSTEM

Detailed explanation-1: -Moon is a natural satellite. An asteroid is a large and rocky irregular object. The moon revolves around the earth. An asteroid revolves around the sun.

Detailed explanation-2: -As they revolve around the Sun in elliptical orbits, the asteroids also rotate, sometimes quite erratically, tumbling as they go. More than 150 asteroids are known to have a small companion moon (some have two moons).

Detailed explanation-3: -Moons have circular orbits and planets orbit in slightly squashed circles, called ellipses.

Detailed explanation-4: -Comets are made of dust, ice, and rock materials, while asteroids are composed of rocky materials and metals. Both celestial bodies were formed 4.6 billion years ago. Asteroids were formed much closer to the sun where it was impossible for the ice to remain solid.

Detailed explanation-5: -Asteroids are smaller than a planet, but they are larger than the pebble-size objects we call meteoroids. A meteor is what happens when a meteoroid – a small piece of an asteroid or comet – burns up upon entering Earth’s atmosphere, creating a streak of light in the sky.