6500 Kodaira
| Discovery | |
|---|---|
| Discovered by |
K. Endate K. Watanabe |
| Discovery site | Kitami Obs. |
| Discovery date | 15 March 1993 |
| Designations | |
| MPC designation | (6500) Kodaira |
|
Named after
|
Keiichi Kodaira (astronomer) |
| 1993 ET · 1970 GE1 1973 ST5 |
|
| Mars-crosser | |
| Orbital characteristics | |
| Epoch 16 February 2017 (JD 2457800.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 46.16 yr (16,861 days) |
| Aphelion | 3.9035 AU |
| Perihelion | 1.6071 AU |
| 2.7553 AU | |
| Eccentricity | 0.4167 |
| 4.57 yr (1,670 days) | |
| 138.29° | |
| 0° 12m 55.8s / day | |
| Inclination | 29.322° |
| 186.12° | |
| 255.52° | |
| Earth MOID | 0.8209 AU |
| Physical characteristics | |
| Dimensions |
9.487±2.081 16.81 km (calculated) |
|
5.3983±0.0026 h 5.3988±0.0002 h 5.400±0.001 h 5.496±0.009 h |
|
| 0.057 (assumed) 0.151±0.110 |
|
| SMASS = B · B | |
| 12.39±0.21 · 12.6 · 12.640±0.007 (R) | |
6500 Kodaira, provisional designation 1993 ET, is a dark, rare-type, and eccentric asteroid and Mars-crosser, approximately 10 kilometers in diameter. It was discovered on 15 March 1993, by Japanese amateur astronomers Kin Endate and Kazuro Watanabe at Kitami Observatory in eastern Hokkaidō, Japan.
The carbonaceous and uncommon B-type asteroid, of which only a few dozen bodies are currently known, orbits the Sun at a distance of 1.6–3.9 AU once every 4 years and 7 months (1,670 days). Its orbit spans from within the orbit of Mars to the outer region of the asteroid belt, and has an eccentricity of 0.42 and an inclination of 29° with respect to the ecliptic. The first precovery was obtained at the Chilean Cerro El Roble Station in 1970, extending the asteroid's observation arc by 23 years prior to its discovery.
A rotational light-curve, obtained from photometric observations by American astronomer Robert Stevens at the Center for Solar System Studies in October 2014, gave a well-define rotation period of 5.400±0.001 hours with a brightness variation of 0.78 in magnitude (U=3). Previous observations at Montgomery College Observatory (MCO), the Preston Gott and McDonald Observatories, and at the Palomar Transient Factory gave similar periods between 5.398 and 5.496 hours (U=3-/3-/2).
...
Wikipedia