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None. The closest case that we have in our solar system that of Charon, Pluto's largest moon, which about roughly half the diameter of Pluto. Since Pluto is no longer considered a planet the largest moon-planet size ratio is that of our own moon, which is about one quarter the diameter of Earth.
What else can I help you with?
Why is a moon not a planet?
A planet orbits a star such as the sun. A moon orbits a planet.
Is a planet a moon?
No. A moon orbits around a planet. A planet orbits around the sun.
How is planet different from moon?
A planet orbits a star whereas a moon orbits a planet.
The moon orbits what planet?
The moon with the specific name 'The Moon' orbits planet Earth.
Are there any other moon's on Mars?
Mars is a planet. A moon is a large celestial object that orbits a planet. So no, there are no moons on mars.
Does the moon orbit around a planet?
No, it orbits you. Of course! The moon orbits EARTH, our planet.
How can you tell something is a planet and not a moon?
A planet is in direct orbit around a central star, while a moon is in orbit around a large body (a planet) rather than in a direct orbit around a star. The moon orbits the planet, while the planet orbits the sun.
How is a moon different from a dwarf planet?
Generally, a dwarf planet orbits only the sun, whereas a moon orbits a planet, which in turn orbits a sun.
What does it mean when your teacher asks what is a satellite on a planet?
any large object that orbits around the planet or AKA moon
What is something in the solar system that orbits a planet?
A moon orbits a planet.
What planet is closer to the moon?
Earth is the closest planet the moon, as it is our planet's moon and orbits Earth.
Which moon orbits farthest from its planet?
The moon that orbits farthest from its planet is Calisto. Calisto is also the most heavily cratered object in the entire solar system.
