1116 Catriona
1116 Catriona (prov. designation: 1929 GD) is a carbonaceous asteroid from the outer regions of the asteroid belt, approximately 39 kilometers (24 miles) in diameter. It was discovered on 5 April 1929, by South African astronomer Cyril Jackson at the Union Observatory in Johannesburg. The asteroid was probably named after the 1893-novel Catriona by Robert Louis Stevenson.
Shape model of Catriona from its lightcurve | |
| Discovery | |
|---|---|
| Discovered by | C. Jackson |
| Discovery site | Johannesburg Obs. |
| Discovery date | 5 April 1929 |
| Designations | |
MPC designation | (1116) Catriona |
Named after | Catriona (novel by Robert Louis Stevenson) |
Alternative designations | 1929 GD · 1926 RQ A908 AC |
Minor planet category |
|
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 109.01 yr (39,815 days) |
| Aphelion | 3.5946 AU |
| Perihelion | 2.2522 AU |
Semi-major axis | 2.9234 AU |
| Eccentricity | 0.2296 |
Orbital period (sidereal) | 5.00 yr (1,826 days) |
Mean anomaly | 348.27° |
Mean motion | 0° 11m 49.92s / day |
| Inclination | 16.523° |
Longitude of ascending node | 356.52° |
| 82.666° | |
| Physical characteristics | |
| Dimensions | 36.71±0.53 km 38.741±0.281 km 39.02 km (derived) 39.04 km 39.12±0.7 km 41.010±0.396 km |
Synodic rotation period | 8.83±0.01 h 8.832 h 10.49 h 12.06 h |
| 0.1395 (derived) 0.1397±0.0214 0.1419 0.1522±0.006 0.155±0.025 0.175±0.006 | |
| C | |
| 9.70 · 9.78 · 9.8 | |
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