1356 Nyanza
1356 Nyanza, provisional designation 1935 JH, is a dark asteroid from the background population of the outer asteroid belt, approximately 63 kilometers in diameter. It was discovered on 3 May 1935, by South-African astronomer Cyril Jackson at the Union Observatory in Johannesburg. The asteroid was named for the former Nyanza Province in Kenya, Africa.
Modelled shape of Nyanza from its lightcurve | |
| Discovery | |
|---|---|
| Discovered by | C. Jackson |
| Discovery site | Johannesburg Obs. |
| Discovery date | 3 May 1935 |
| Designations | |
MPC designation | (1356) Nyanza |
Named after | Nyanza Province (former province of Kenya) |
Alternative designations | 1935 JH · 1929 EL 1929 JH · 1929 JJ 1931 TB3 |
Minor planet category | main-belt · (outer) background |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 86.06 yr (31,435 days) |
| Aphelion | 3.2359 AU |
| Perihelion | 2.9288 AU |
Semi-major axis | 3.0823 AU |
| Eccentricity | 0.0498 |
Orbital period (sidereal) | 5.41 yr (1,977 days) |
Mean anomaly | 307.99° |
Mean motion | 0° 10m 55.56s / day |
| Inclination | 7.9461° |
Longitude of ascending node | 69.627° |
| 302.27° | |
| Physical characteristics | |
| Dimensions | 60.078±0.289 km 60.895±0.757 km 61.05±20.58 km 62.46±0.89 km 64.59 km (derived) 64.73±5.1 km |
Synodic rotation period | 12.422±0.006 h |
| 0.0352 (derived) 0.04±0.02 0.0462±0.008 0.050±0.002 0.052±0.007 0.0537±0.0090 | |
| P · C (assumed) | |
| 9.90 · 10.20 | |
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