Katharina (minor planet designation: 320 Katharina) is a small Main belt asteroid orbiting in the Eos family of asteroids, including 513 Centesima and 221 Eos.[1] It was discovered by Johann Palisa on 11 October 1891 in Vienna. It is named after the discoverer's mother.[2]
| Discovery | |
|---|---|
| Discovered by | Johann Palisa |
| Discovery date | 11 October 1891 |
| Designations | |
MPC designation | (320) Katharina |
Minor planet category | Main belt (Eos) |
| Orbital characteristics[1] | |
| 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) |
Semi-major axis | 3.01122 AU (450.472 Gm) |
| Eccentricity | 0.11682 |
Orbital period (sidereal) | 5.23 yr (1908.6 d) |
Mean anomaly | 315.691° |
Mean motion | 0° 11m 19.036s / day |
| Inclination | 9.3783° |
Longitude of ascending node | 219.929° |
Argument of perihelion | 150.129° |
| Physical characteristics | |
| Dimensions | 17 - 37 km |
Synodic rotation period | 6.893 h (0.2872 d) |
Geometric albedo | 0.3207-0.0677 |
Absolute magnitude (H) | 10.8 |
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