_Hersilia.png) 3D convex shape model of 206 Hersilia | |
| Discovery | |
|---|---|
| Discovered by | C. H. F. Peters |
| Discovery date | 13 October 1879 |
| Designations | |
| (206) Hersilia | |
| Pronunciation | /hərˈsɪliə/[1] |
Named after | Hersilia |
| A879 TC, 1961 WG 1974 PM | |
| Main belt | |
| Orbital characteristics[2] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 136.34 yr (49798 d) |
| Aphelion | 2.84299 AU (425.305 Gm) |
| Perihelion | 2.63811 AU (394.656 Gm) |
| 2.74055 AU (409.980 Gm) | |
| Eccentricity | 0.037379 |
| 4.54yr (1657.1d) | |
Averageorbital speed | 17.99 km/s |
| 348.975° | |
| 0° 13m 2.078s / day | |
| Inclination | 3.77868° |
| 145.169° | |
| 299.705° | |
| Physical characteristics | |
| Dimensions | 113km |
| 11.122 h (0.4634 d) | |
| 0.055 | |
| Temperature | unknown |
| C | |
| 8.68 | |
206 Hersilia is a fairly largeMain beltasteroid. It was discovered byC. H. F. Peters on October 13, 1879, inClinton, New York. The asteroid was named afterHersilia, Roman wife ofRomulus. It is classified as a primitive, darkcarbon-richC-type asteroid.
Measurements made with theIRAS observatory give a diameter of 101.72 ± 5.18 km and ageometric albedo of 0.06 ± 0.01. By comparison, the MIPSphotometer on theSpitzer Space Telescope gives a diameter of 97.99 ± 7.40 km and a geometric albedo of 0.06 ± 0.02.[3]
The last close earth transit was in November and December 2002.
_mathilde.jpg) | This article about a C-type asteroid native to theasteroid belt is astub. You can help Wikipedia byexpanding it. |
