This question is brought up due to confusion over that cool video of an asteroid cricling the Earth and not understanding the explanation of what the L1 represents. Thank you.
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Its a point of equilibrium for an object with a small mass between 2 other objects with much larger masses. L1 is smack in-between 2 large orbiting bodies, in our case between the Earth and the Sun. Because of Earth’s gravitational influence, at L1 the object’s orbital period matches Earth’s exactly.
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