(1509) Esclangona
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Asteroid (1509) Esclangona |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 1.8663 AU |
| eccentricity | 0.0322 |
| Perihelion - aphelion | 1.8061 AU - 1.9264 AU |
| Inclination of the orbit plane | 22.323 ° |
| Sidereal period | 2,550 a |
| Mean orbital velocity | 21.80 km / s |
| Physical Properties | |
| Medium diameter | 8.17 km |
| Albedo | 0.2327 |
| Rotation period | 3.247 h |
| Absolute brightness | 12.29 mag |
| Spectral class | ? |
| history | |
| Explorer | André Patry |
| Date of discovery | December 21, 1938 |
| Another name | 1938 YG |
| Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items. | |
(1509) Esclangona is an asteroid of the main belt , which on 21 December 1938 by the French astronomer André Patry in Nice was discovered. The name of the asteroid is reminiscent of the French astronomer Ernest Esclangon .
(1509) Esclangona is one of the asteroids that have a small moon . This Trabant, discovered in 2003, has the provisional designation S / 2003 (1509) 1 . Measurements have shown a diameter of about 4 km for the moon. It has an unusually large distance of about 140 km from the asteroid, which indicates an unusual history of formation. Possibly the system goes back to an impact of larger bodies, as a result (1509) Esclangona and the moon were thrown away as ejection material.
See also
Individual evidence
- ↑ Discovery of new asteroid binaries (121) Hermione and (1509) Esclangona ( Memento from September 29, 2007 in the Internet Archive )