*Earth has one moon
also known as its natural satellite.
*Its moon is 384
(km) it has a radius of 1738 and a mass of 7.35x10^22.
*The moon has
at most a small core.
between the Earth and the Moon slows the Earth's rotation by about 2 milliseconds per century. Some curent research concluded
that about 900 milion years ago there were 481 18-hour days in a year.
*Earth has NO RINGS