I assume you mean "the focus of the ellipse". That's the Earth, since the Moon revolves around Earth.
the orbit of planets around the Sun in the Solar systemthe orbit of moons around their planets in the Solar system
All object except the Sun orbit round the Sun. The moons also orbit round their planets.
3. one orbiting earth, 2 others orbit mars
Planets and moons that orbit the sun are generally referred to as celestial bodies or astronomical bodies in the context of our solar system.
Moons are approximately spherical objects which orbit planets and are smaller than the planets that they orbit, although they are still relatively large objects (so an orbiting dust particle does not qualify as a moon). Since moons orbit planets, their motion around the solar system is controlled by the planets that they orbit; planets orbit the sun, and planets take their moons with them.
Earth is.
Earth is.
169 moons.
The Galilean moons orbit Jupiter.
There are 180 moons in our solar system.
A solar system
the orbit of planets around the Sun in the Solar systemthe orbit of moons around their planets in the Solar system
No satellites are known to orbit Mercury or Venus.
All object except the Sun orbit round the Sun. The moons also orbit round their planets.
In most cases, the moons are about as old as the planets they orbit, perhaps slightly younger. Most objects in the solar system formed when the solar system did.
3. one orbiting earth, 2 others orbit mars
Planets and moons that orbit the sun are generally referred to as celestial bodies or astronomical bodies in the context of our solar system.