- Cruithne
- Simulations of Asteroid 3753, also known as 1986 TO, and incorrectly referred to as "Earth's second moon". - Near-Earth Asteroid 3753 Cruithne
- Information about the asteroid 3753 Cruithne which shares the Earth's orbit. Includes diagrams and graphics illustrating the motion of Cruithne. - Wikipedia: 3753 Cruithne
- Article describing 3753 Cruithne, the asteroid that shares the Earth's orbit.
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