299 Thora
| Discovery | |
|---|---|
| Discovered by | Johann Palisa |
| Discovery date | 6 October 1890 |
| Designations | |
|
Named after
|
Thor |
| Main belt | |
| Orbital characteristics | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 83.21 yr (30393 d) |
| Aphelion | 2.58488 AU (386.693 Gm) |
| Perihelion | 2.28265 AU (341.480 Gm) |
| 2.43376 AU (364.085 Gm) | |
| Eccentricity | 0.062093 |
| 3.80 yr (1386.8 d) | |
|
Average orbital speed
|
19.09 km/s |
| 40.9107° | |
| 0° 15m 34.52s / day | |
| Inclination | 1.60383° |
| 241.531° | |
| 150.672° | |
| Earth MOID | 1.28684 AU (192.509 Gm) |
| Jupiter MOID | 2.66343 AU (398.443 Gm) |
| Jupiter Tisserand parameter | 3.503 |
| Physical characteristics | |
| Dimensions | 17.06±1.5 km |
| 274 h (11.4 d) | |
| 0.1673±0.033 | |
| 11.3 | |
299 Thora is a 17 km Main belt asteroid with a potentially long 274-hour rotation period. It was discovered by Johann Palisa on October 6, 1890 in Vienna.
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