![]() Orbit of Tyrannosaurus (blue), with the inner planets and Jupiter (outermost) | |
Discovery [1] | |
---|---|
Discovered by | E. W. Elst |
Discovery site | La Silla Obs. |
Discovery date | 15 November 1990 |
Designations | |
(9951) Tyrannosaurus | |
Pronunciation | /tɪˌrænəˈsɔːrəs/[2] |
Named after | Tyrannosaurus (theropod dinosaur)[3] |
1990 VK5 · 1974 OG1 1992 EZ5 | |
main-belt · (inner) Vesta [4] | |
Orbital characteristics [1] | |
Epoch 4 September 2017 (JD 2458000.5) | |
Uncertainty parameter 0 | |
Observation arc | 42.53 yr (15,534 days) |
Aphelion | 2.7243 AU |
Perihelion | 2.1283 AU |
2.4263 AU | |
Eccentricity | 0.1228 |
3.78 yr (1,380 days) | |
155.31° | |
0° 15m 38.88s / day | |
Inclination | 7.4000° |
133.42° | |
153.36° | |
Physical characteristics | |
Dimensions | 17 km[5] |
S [6] | |
14.2[1] | |
9951 Tyrannosaurus, provisional designation 1990 VK5, is a stony Vestian asteroid from the inner regions of the asteroid belt, approximately 17 kilometers in diameter. It was discovered on 15 November 1990, by Belgian astronomer Eric Elst at ESO's La Silla Observatory in northern Chile.[7] It was named after Tyrannosaurus, a genus of dinosaurs.[3]
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