240 Vanadis
| Discovery | |
|---|---|
| Discovered by | A. Borrelly |
| Discovery date | 27 August 1884 |
| Designations | |
| (240) Vanadis | |
| Pronunciation | /ˈvɑːnə.dɪs/ |
| Main belt | |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 131.61 yr (48072 d) |
| Aphelion | 3.2134 AU (480.72 Gm) |
| Perihelion | 2.1178 AU (316.82 Gm) |
| 2.6656 AU (398.77 Gm) | |
| Eccentricity | 0.20551 |
| 4.35 yr (1589.6 d) | |
Average orbital speed | 18.25 km/s |
| 60.5202° | |
| 0° 13m 35.292s / day | |
| Inclination | 2.1043° |
| 115.191° | |
| 300.174° | |
| Physical characteristics | |
| Dimensions | 103.90±2.5 km[1] 94.03 ± 5.37 km[2] |
| Mass | (1.10 ± 0.92) × 1018 kg[2] |
Mean density | 2.53 ± 2.15 g/cm3[2] |
| 10.64 h (0.443 d) | |
| 0.0411±0.002 | |
| C | |
| 9.00 | |
Vanadis (minor planet designation: 240 Vanadis) is a fairly large main-belt asteroid. It is very dark and is classified as a C-type asteroid, probably composed of primitive carbonaceous material.
It was discovered by A. Borrelly on August 27, 1884, in Marseilles and was named after Freyja (Vanadis), the Norse fertility goddess.
References
- ^ a b "240 Vanadis". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 12 May 2016.
- ^ a b c Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science, vol. 73, pp. 98–118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009. See Table 1.
External links
- The Asteroid Orbital Elements Database
- Minor Planet Discovery Circumstances
- Asteroid Lightcurve Data File
- 240 Vanadis at AstDyS-2, Asteroids—Dynamic Site
- 240 Vanadis at the JPL Small-Body Database
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