ELi5 what makes the sun a star and not a planet? And why is the moon not considered a planet?
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There is some science behind the idea that earths moon isn’t really a moon. If you follow some of the definitions of what a planet is, then the earth and the moon could maybe be considered a binary planet system. The moon orbits us, but we also orbit the moon as we are orbiting the sun. All the other answers you are getting about what makes a star a star are exactly right. There is some wonderful language in the definition of a planet about how it has cleared the space around it of all other bodies. We have done that as the earth, but the moon has also done that.
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