5648 Axius
| Discovery | |
|---|---|
| Discovered by | K. Endate K. Watanabe |
| Discovery site | Kitami Obs. |
| Discovery date | 11 November 1990 |
| Designations | |
| (5648) Axius | |
Named after | Axius (Greek mythology) |
| 1990 VU1 | |
| Jupiter trojan Trojan · background | |
| Adjectives | Axian |
| Orbital characteristics | |
| Epoch 23 March 2018 (JD 2458200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 67.94 yr (24,816 d) |
| Aphelion | 6.0024 AU |
| Perihelion | 4.3016 AU |
| 5.1520 AU | |
| Eccentricity | 0.1651 |
| 11.69 yr (4,271 d) | |
| 178.01° | |
| 0° 5m 3.48s / day | |
| Inclination | 22.693° |
| 71.048° | |
| 268.85° | |
| Jupiter MOID | 0.0521 AU |
| TJupiter | 2.8210 |
| Physical characteristics | |
| 59.30±1.35 km 63.91 km (calculated) | |
| 37.56±0.05 h | |
| 0.057 (assumed) 0.073±0.015 | |
| D (S3OS2) B–V = 0.730±0.060 V–R = 0.480±0.040 V–I = 0.900±0.032 | |
| 9.6 9.7 | |
5648 Axius, provisional designation: 1990 VU1, is a Jupiter trojan from the Trojan camp, approximately 60 kilometers (37 miles) in diameter. It was discovered on 11 November 1990, by Japanese amateur astronomers Kin Endate and Kazuro Watanabe at the Kitami Observatory on the northern island of Hokkaidō, Japan. The dark D-type asteroid belongs to the 70 largest Jupiter trojans and has a long rotation period of 37.6 hours. It was named after Axius, a river god from Greek mythology.