2483 Guinevere
| Discovery | |
|---|---|
| Discovered by | Max Wolf |
| Discovery site | Heidelberg |
| Discovery date | 17 August 1928 |
| Designations | |
| MPC designation | 2483 |
Named after | Guinevere |
| 1928 QB | |
| Orbital characteristics[1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 87.29 yr (31882 days) |
| Aphelion | 5.0769684 AU (759.50366 Gm) |
| Perihelion | 2.8680238 AU (429.05025 Gm) |
| 3.972496 AU (594.2769 Gm) | |
| Eccentricity | 0.2780298 |
| 7.92 yr (2892.0 d) | |
| 290.07215° | |
| 0° 7m 28.138s / day | |
| Inclination | 4.498974° |
| 252.05604° | |
| 183.36129° | |
| Earth MOID | 1.88252 AU (281.621 Gm) |
| Jupiter MOID | 0.231371 AU (34.6126 Gm) |
| Jupiter Tisserand parameter | 2.983 |
| Physical characteristics | |
| Dimensions | 44 km[1] |
Mean radius | 22.085 ± 1.95 km |
| 14.733 h (0.6139 d) | |
Sidereal rotation period | 14.733 h[1] |
| 0.0433 ± 0.009[1] | |
| 10.8[1] | |
|
| |
2483 Guinevere (1928 QB) is a 44 km outer main-belt asteroid discovered on August 17, 1928 by Max Wolf at Heidelberg.[1] It is a member of the Hilda family of asteroids that are in a 3:2 orbital resonance with Jupiter. In a 1998 numerical integration by Dahlgren, Guinevere was the Hilda asteroid with the greatest chance of impacting with another asteroid.[2] About 74% of the impact risk occurs when Guinevere is relatively close to perihelion and approaches the main-belt asteroids.
References
- 1 2 3 4 5 6 "JPL Small-Body Database Browser: 2483 Guinevere". Jet Propulsion Laboratory. Retrieved 15 April 2016.
- ↑ Dahlgren, M. (1998). "A study of Hilda asteroids. III. Collision velocities and collision frequencies of Hilda asteroids". Astronomy and Astrophysics. 336: 1056–1064. Bibcode:1998A&A...336.1056D.
- Dahlgren, M.; Lahulla, J.F.; Lagerkvist, C.-I.; Lagerros, J.; et al. (1998) Icarus 133, 247-285.
External links
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