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.
Asteroids are made of rock and metal and broken away pieces of planets. They are grouped into three categories: Stony, Iron-Nickel, and a mixture of the two.Most asteroids that we know about fall into the first category, and are made of Silicates. A small percentage are Iron-Nickel.The rest form the third type. I believe that they are made of rocky bits left over from the formation of the inner planets. The run-of-the-mill asteroid is just one kilometer long.hey are grouped into three categories: Stony, Iron-Nickel, and a mixture of the two. Most asteroids that we know about fall into the first category, and are made of Silicates. A small percentage are Iron-Nickel.