320 Katharina
| Discovery | |
|---|---|
| Discovered by | Johann Palisa |
| Discovery date | 11 October 1891 |
| Designations | |
| Main belt (Eos) | |
| Orbital characteristics | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 108.42 yr (39602 d) |
| Aphelion | 3.36300 AU (503.098 Gm) |
| Perihelion | 2.6595 AU (397.86 Gm) |
| 3.01122 AU (450.472 Gm) | |
| Eccentricity | 0.11682 |
| 5.23 yr (1908.6 d) | |
|
Average orbital speed
|
17.16 km/s |
| 315.691° | |
| 0° 11m 19.036s / day | |
| Inclination | 9.3783° |
| 219.929° | |
| 150.129° | |
| Earth MOID | 1.66358 AU (248.868 Gm) |
| Jupiter MOID | 2.1203 AU (317.19 Gm) |
| Jupiter Tisserand parameter | 3.219 |
| Physical characteristics | |
| Dimensions | 17 - 37 km |
| Mass | [7.72 x 10^15 kg - 7.97 x 10^16 kg]? (assumed) |
|
Mean density
|
3.0 g/cm^3? (assumed) |
|
Equatorial surface gravity
|
unknown |
|
Equatorial escape velocity
|
unknown |
| 6.893 h (0.2872 d) | |
| 0.3207-0.0677 | |
| Temperature | 145.78 K-157.79 K |
| K-type? | |
| 10.8 | |
320 Katharina is a small Main belt asteroid orbiting in the Eos family of asteroids, including 513 Centesima and 221 Eos. It was discovered by Johann Palisa on October 11, 1891 in Vienna.
...
Wikipedia