3753 Cruithne
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3753 Cruithne is an asteroid of the Aten group. In its orbit around the Sun, Cruithne has a 1:1 orbital resonance with Earth, making it a co-orbital object. Relative to Earth, Cruithne has a horseshoe orbit. Therefore, can be considered an Earth quasi-moon. It is important to remember that despite this, Cruithne does not orbit the Earth, but actually the Sun.
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