| Asteroid Number | 3753 | | Asteroid Group | Aten group of Near-Earth asteroids | | Orbital Period | 364 days | | Distance from the Sun | Semi-Major Axis: 149,255,000 km (1.00 AU), highly eccentric
Perihelion: 72,402,000 km (0.48 AU, approaching the orbit of Mercury)
Aphelion: 226,108,000 km (1.51 AU, beyond the orbit of Mars) | | Eccentricity | 0.5149 | | Diameter (Mean) | c.5 kilometres | | Notes | A small body that pursues a course carrying it through the inner Solar System, crossing the Earth's path as it does so. Cruithne's orbit is resonant with that of Earth, and it takes almost exactly one year to travel around the Sun, but it is not (as is often suggested) a second moon of Earth. |
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