144 Vibilia
144 Vibilia is a carbonaceous asteroid from the central region of the asteroid belt, approximately 140 kilometers in diameter. It was discovered on 3 June 1875, by German–American astronomer Christian Peters at Litchfield Observatory of the Hamilton College in Clinton, New York, United States. Peters named it after Vibilia, the Roman goddess of traveling, because he had recently returned from a journey across the world to observe the transit of Venus. Peters also discovered 145 Adeona on the same night. The official naming citation was published by Paul Herget in The Names of the Minor Planets in 1955 (H 19).
3D convex shape model of 144 Vibilia | |
| Discovery | |
|---|---|
| Discovered by | C. H. F. Peters |
| Discovery site | Litchfield Obs. |
| Discovery date | 3 June 1875 |
| Designations | |
MPC designation | (144) Vibilia |
| Pronunciation | /vɪˈbɪliə/ |
Named after | Vibilia (Roman goddess of traveling) |
Alternative designations | A875 LA |
Minor planet category | main-belt · Vibilia |
| Adjectives | Vibilian |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Aphelion | 3.2796 AU |
| Perihelion | 2.0350 AU |
Semi-major axis | 2.6573 AU |
| Eccentricity | 0.2342 |
Orbital period (sidereal) | 4.33 yr (1,582 days) |
Mean anomaly | 230.96° |
Mean motion | 0° 13m 39s / day |
| Inclination | 4.8123° |
Longitude of ascending node | 76.204° |
| 294.36° | |
| Physical characteristics | |
| Dimensions | 131.36±33.30 km 134.59±50.58 km 141.34±2.76 km 142.20±1.76 km 142.38±2.6 km (IRAS:15) |
| Mass | (5.30±1.20)×1018 kg |
Mean density | 2.4+0.7 −0.5 g/cm3 3.58±0.84 g/cm3 |
Synodic rotation period | 13.810 h 13.819±0.002 h 13.824±0.001 h 13.82516±0.00005 h 13.88±0.02 h |
| 0.05±0.01 0.05±0.06 0.0597±0.002 (IRAS:15) 0.060±0.002 | |
| C (Tholen), Ch (SMASS) C B–V = 0.727 U–B = 0.402 | |
| 7.91 · 7.92±0.02 · 8.03±0.21 · 8.03 | |
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