(1872) Helenos
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Asteroid (1872) Helenos |
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|---|---|
| Properties of the orbit ( animation ) | |
| Orbit type | Jupiter Trojan (L5) |
| Major semi-axis | 5.289 AU |
| eccentricity | 0.0457 |
| Perihelion - aphelion | 5.0466 AU - 5.5305 AU |
| Inclination of the orbit plane | 14.662 ° |
| Sidereal period | 12,162 a |
| Mean orbital velocity | 12.95 km / s |
| Physical Properties | |
| Medium diameter | ? km |
| Dimensions | ? kg |
| Albedo | ? |
| Medium density | ? g / cm³ |
| Rotation period | ? H |
| Absolute brightness | 10,691 likes |
| Spectral class | ? |
| history | |
| Explorer | CJ van Houten , |
| Date of discovery | 1971 |
| Another name | 1971 FG |
| 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. | |
(1872) Helenos 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 . (1872) Helenos was discovered on March 24, 1971 by the research team of Cornelis Johannes van Houten , Ingrid van Houten-Groeneveld and Tom Gehrels .
The asteroid was named after Helenos , son of Priam , a legendary figure of the Trojan War.