Cosmic Queries – Asteroid Hunters with Marina Brozovic
StarTalk Radio
00:00
The Moon and the Moon in the Asteroids?
Pluto has a moon except the center of mass of Pluto and its moon is outside. For Earth, our center masses within Earth's surface between the Earth's moons. So we can think of we being a primary and then the moon going around us. There's a very rare object called an equal mass binary binary because they are orbiting the common center of mass.
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