Astronomy. any of the thousands of small bodies of from 480 miles (775 km) to less than one mile (1.6 km) in diameter that revolve about the sun in orbits lying mostly between those of Mars and Jupiter.
Zoology. an asteroidean; a starfish.
The term "asteroid" is ill-defined. It never had a formal definition, with the broader
term minor planet being preferred by the International Astronomical Union.
An asteroid is a large, irregularly shaped object in space that orbits our Sun. If
one of these giant rocks ends up on a collision course with Earth, we are in for
Define asteroid: any one of thousands of small planets that circle around the sun
—usage, synonyms, more.
Number : number assigned to an asteroid
when it is discovered. It has no particular meaning except that asteroid
N+1 was discovered after asteroid
N. More »
The definition of an asteroid is a rocky mass that orbits the sun. Facts About
Astroids. More than 1,800 asteroids have been identifed in the solar system.
Astronomy Any of numerous small solar system bodies that revolve around the
sun, with orbits lying chiefly between Mars and Jupiter and characteristic ...
A small rocky body orbiting the sun. Large numbers of these, ranging e....
Meaning, pronunciation and example sentences, English to English reference
The ajacent image shows the asteroid Gaspra, as photographed by the Galileo
space probe (Ref). The name asteroids, meaning "star-like", derives from the fact
Feb 15, 2013 ... What is the difference between an asteroid, a meteoroid, a meteor and a ... An
asteroid is a rocky object in space that's smaller than a planet ...