1505 Koranna
1505 Koranna, provisional designation 1939 HH, is a stony Eunomia asteroid from the central regions of the asteroid belt, approximately 21 kilometers in diameter. It was discovered on 21 April 1939, by South African astronomer Cyril Jackson at the Union Observatory in Johannesburg. The asteroid was named for the native Koranna people of South Africa.
| Discovery | |
|---|---|
| Discovered by | C. Jackson |
| Discovery site | Johannesburg Obs. |
| Discovery date | 21 April 1939 |
| Designations | |
MPC designation | (1505) Koranna |
Named after | Koranna people (native South African people) |
Alternative designations | 1939 HH · 1935 MD 1948 MB · 1958 UM |
Minor planet category | main-belt · (middle) Eunomia · background |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 82.26 yr (30,045 days) |
| Aphelion | 3.0150 AU |
| Perihelion | 2.3037 AU |
Semi-major axis | 2.6593 AU |
| Eccentricity | 0.1337 |
Orbital period (sidereal) | 4.34 yr (1,584 days) |
Mean anomaly | 15.932° |
Mean motion | 0° 13m 38.28s / day |
| Inclination | 14.471° |
Longitude of ascending node | 248.28° |
| 342.44° | |
| Physical characteristics | |
| Dimensions | 20.46±0.76 km 20.88±2.1 km 21.00 km (derived) 22.277±0.690 km 22.83±0.88 km |
Synodic rotation period | 4.45±0.15 h 4.451±0.001 h 4.452±0.0011 h |
| 0.082±0.007 0.0929±0.022 0.107±0.016 0.1209 (derived) 0.127±0.021 | |
| S (assumed) | |
| 11.197±0.002 (R) · 11.30 · 11.47±0.63 · 11.60 | |
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