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Asclepius (minor planet 4581)
A small asteroid of the Apollo group that can approach Earth's orbit to within 600,000 km. Asclepius was discovered in 1989 by the American astronomers Henry Holt (1929–) and Norman Thomas (1930–).
| diameter | several hundred meters |
| semimajor axis | 1.023 AU |
| perihelion | 0.66 AU |
| aphelion | 1.39 AU |
| inclination | 4.9° |
| period | 1.03 years |
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