2063 Bacchus
| Discovery | |
|---|---|
| Discovered by | Charles T. Kowal |
| Discovery date | 24 April 1977 |
| Designations | |
| 1977 HB | |
| Apollo asteroid | |
| Orbital characteristics[1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 13993 days (38.31 yr) |
| Aphelion | 1.4545176269 AU (217.59273988 Gm) |
| Perihelion | 0.701395913 AU (104.9273351 Gm) |
| 1.0779567697 AU (161.26003745 Gm) | |
| Eccentricity | 0.34932835 |
| 1.12 yr (408.79 d) | |
Average orbital speed | 27.79 km/s |
| 304.7338918° | |
| 0.880647400°/day | |
| Inclination | 9.432821153° |
| 33.10486573° | |
| 55.31896050° | |
| Earth MOID | 0.067121 AU (10.0412 Gm) |
| Jupiter MOID | 3.7781 AU (565.20 Gm) |
| Physical characteristics | |
| Dimensions |
2.6×1.1×1.1km[1] 1.11×0.53×0.50 km[2] Deff=0.63+0.13 −0.06 km[2] |
| 14.904 h (0.6210 d)[1] | |
|
visual: 0.56+0.12 −0.18[2] radar: 0.33+0.25 −0.11[2] | |
| Temperature | ~224 K |
| Sq (SMASSII)[1] | |
| 17.3[1] | |
|
| |
2063 Bacchus (/ˈbækəs/ BAK-əs) is an Apollo asteroid and Venus- and Mars-crosser asteroid. It was discovered on April 24, 1977, by Charles T. Kowal at the Palomar Observatory. In March 1996 radar observations were conducted at the Goldstone Observatory under the direction of JPL scientists Steven Ostro and Lance Benner, allowing the construction of a model of the object.[2] Optical observations were conducted by Petr Pravec, Marek Wolf, and Lenka Šarounová during March and April 1996.
Bacchus is about 2.6×1.1×1.1 km[1] in size and has a bilobate shape. Its spectral type is Sq.[1]
Its name derives from the Roman god Bacchus.
On 31 March 1996, Bacchus passed 0.0677525 AU (10,135,630 km; 6,297,990 mi) from Earth.[1]
References
- 1 2 3 4 5 6 7 8 "JPL Small-Body Database Browser: 2063 Bacchus" (2014-10-26 last obs; arc: 37.51 years). Retrieved 25 March 2016.
- 1 2 3 4 5 Benner, L. A. M., R. S. Hudson, S. J. Ostro, K. D. Rosema, J. D. Giorgini, D. K. Yeomans, R. F. Jurgens, D. L. Mitchell, R. Winkler, R. Rose, M. A. Slade, M. L. Thomas, and P. Pravec. (1999). Radar observations of asteroid 2063 Bacchus. Icarus 139, 309–327
External links
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