(9694) Lycomedes
Asteroid (9694) Lycomedes |
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Properties of the orbit ( animation ) | |
Orbit type | Jupiter Trojan (L 4 ) |
Major semi-axis | 5.1019 AU |
eccentricity | 0.0359 |
Perihelion - aphelion | 4.9190 AU - 5.2848 AU |
Inclination of the orbit plane | 4.9437 ° |
Length of the ascending node | 350.1027 ° |
Argument of the periapsis | 53.7425 ° |
Sidereal period | 11.52 a |
Mean orbital velocity | 13.05 km / s |
Physical Properties | |
Medium diameter | 31.736 (± 0.243) km |
Albedo | 0.101 (± 0.010) |
Rotation period | 18.2 h |
Absolute brightness | 10.5 mag |
Spectral class | D. |
history | |
Explorer | C. J. and I. v. Houten-Groeneveld , T. Gehrels |
Date of discovery | September 26, 1960 |
Another name | 6581 PL , 1990 DY 1 |
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. |
(9694) Lycomedes is an asteroid belonging to the group of Jupiter Trojans . This describes asteroids that move around the sun on the Lagrange points on Jupiter's orbit . (9694) Lycomedes was discovered on September 26, 1960 by the Dutch astronomer couple Cornelis Johannes van Houten and Ingrid van Houten-Groeneveld . The discovery came about as part of the Palomar-Leiden survey , during which Tom Gehrels examined field plates recorded at the University of Leiden with the 120 cm Oschin Schmidt telescope of the Palomar observatory . It is assigned to the Lagrangian point L 4 .
The asteroid was named on April 2, 1999 after the mythological figure Lykomedes , the king of Skyros .
See also
Web links
- Asteroid Lycomedes: Discovery Circumstances according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics, Cambridge, USA
- Asteroid Lycomedes in the Small-Body Database of NASA's Jet Propulsion Laboratory at the California Institute of Technology, Pasadena, USA
- (9694) Lycomedes in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).