379 Huenna
Huenna and its moon imaged by the Keck II telescope on 14 August 2003 | |
| Discovery | |
|---|---|
| Discovered by | Auguste Charlois |
| Discovery site | Nice Observatory |
| Discovery date | 8 January 1894 |
| Designations | |
| (379) Huenna | |
| Pronunciation | /hjuːˈɛnə/ |
Named after | Ven, Sweden |
| A894 AA · A895 DB · A911 BA · 1948 XM | |
| Main belt (Themis) | |
| Orbital characteristics | |
| Epoch 21 November 2025 (JD 2461000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 131.81 yr (48145 d) |
| Aphelion | 3.7044 AU (554.17 Gm) |
| Perihelion | 2.5793 AU (385.86 Gm) |
| 3.1419 AU (470.02 Gm) | |
| Eccentricity | 0.1791 |
| 5.5692 yr (2034.2 d) | |
| 6.5320° | |
| 0° 10m 38.82s / day | |
| Inclination | 1.6710° |
| 171.847° | |
| 180.977° | |
| Known satellites | 1 |
| Jupiter MOID | 1.7266 AU (258.30 Gm) |
| TJupiter | 3.184 |
| Physical characteristics | |
| 87.5±8.2 km | |
| Mass | 5.22×1017 kg (system mass) |
Mean density | 1.491±0.249 g/cm3 |
| 14.141 h (0.5892 d) | |
| 0.046 | |
| B-type (Tholen) C-type (SMASSII) | |
| 8.87 | |
379 Huenna is a large asteroid located in the main asteroid belt. It was discovered by Auguste Charlois on 8 January 1984 at Nice Observatory, and was named after the island of Ven. Classified as a primitive B-type or C-type asteroid, it is a member of the Themis family. It is estimated to be roughly 87.5 kilometres (54.4 mi) in diameter, rotating once ever 14.14 hours.
Huenna has one known moon. The moon, which is currently unnamed, was discovered on 14 August 2003 by Jean-Luc Margot at Keck Observatory. It orbits Huenna on a wide and eccentric 80-day orbit, suggesting that it may be a captured object.