One natural satellite of earth so far discovered.
Earth has 1 satellite - the Moon.
Earth has one moon.
No known planets have only one moon other than earth.
27
The moon doesn't have a number in the solar system. It's actually a piece of the Earth's core.
the moon is not a planet. The moon is a natural satelite that orbits the earth. It has no light but it will emit the sun's light at night.
The earth (Terra) has only one moon.
1 moon.
The moon is to the earth, as the earth is to the sun.
The gravitational interaction of the Earth and Moon produces a number of effects. The most obvious of these is the orbital motion of the Moon around the Earth, but there is also a motion of the Earth around the center of mass of the Earth-Moon system, tidal effects on the Earth and Moon and professional effects on the Earth's axis of rotation.
The Moon orbits the Earth, and tags along after the Earth. It takes one year - 365.25 days - for the Earth to orbit the Sun once, so that's the number for the Moon as well.
one but you might want to check your grammar.