(4057) Demophon
| Asteroid (4057) Demophon | |
|---|---|
| Properties of the orbit ( animation ) | |
| Orbit type | Jupiter Trojan (L 4 ) | 
| Major semi-axis | 5.2717 AU | 
| eccentricity | 0.1187 | 
| Perihelion - aphelion | 4.646 AU - 5.8974 AU | 
| Inclination of the orbit plane | 2.873 ° | 
| Sidereal period | 12.10 a | 
| Mean orbital velocity | 12.97 km / s | 
| Physical Properties | |
| Medium diameter | ? km | 
| Dimensions | ? kg | 
| Albedo | ? | 
| Medium density | ? g / cm³ | 
| Rotation period | ? H | 
| Absolute brightness | 10.09 mag | 
| Spectral class | ? | 
| history | |
| Explorer | E. Bowell | 
| Date of discovery | 1985 | 
| Another name | 1985 TQ | 
| 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. | |
(4057) Demophon 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 . (4057) Demophon was discovered by Edward LG Bowell on October 15, 1985 . It is assigned to the Lagrangian point L 4 .
The asteroid bears the name of the mythological king Demophon of Athens .
