Before you call the contractor and start picking out float toys, letâs make sure you know what youâre getting into. The average in-ground swimming pool costs $21,919, according to home improvement site Fixr. And thatâs for a pretty basic 32â by 16â model. But thatâs just to build the thing. Then you have to take care of it.
The large majority of known asteroids orbit in the asteroid belt between the orbits of Mars and Jupiter, or are co-orbital with Jupiter (the Jupiter trojans). However, other orbital families exist with significant populations, including the near-Earth objects.
The largest asteroid is called Ceres. It is about one-quarter the size of the moon and orbits the sun between Mars and Jupiter in a region called the asteroid belt. Unlike most asteroids, Ceres is spherical in shape. Ceres was discovered by the Italian astronomer Giuseppe Piazzi in 1801 as he searched for a planet which was predicted to exist between Mars and Jupiter. It was the first asteroid ever discovered. It is a dwarf planet.