2054 Gawain
2054 Gawain, provisional designation 4097 P-L, is a dark and elongated asteroid from the outer regions of the asteroid belt, approximately 19 kilometers in diameter. Discovered during the Palomar–Leiden survey at Palomar Observatory in 1960, the asteroid was later named after Gawain, a knight of King Arthur's Round Table in the Arthurian legend.
| Discovery | |
|---|---|
| Discovered by | C. J. van Houten I. van Houten-G. T. Gehrels |
| Discovery site | Palomar Obs. |
| Discovery date | 24 September 1960 |
| Designations | |
MPC designation | (2054) Gawain |
Named after | Gawain (Arthurian legend) |
Alternative designations | 4097 P-L · 1973 FG1 |
Minor planet category | main-belt · (outer) |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 62.52 yr (22,834 days) |
| Aphelion | 3.2591 AU |
| Perihelion | 2.6716 AU |
Semi-major axis | 2.9653 AU |
| Eccentricity | 0.0991 |
Orbital period (sidereal) | 5.11 yr (1,865 days) |
Mean anomaly | 315.28° |
Mean motion | 0° 11m 34.8s / day |
| Inclination | 3.7886° |
Longitude of ascending node | 293.24° |
| 183.97° | |
| Physical characteristics | |
| Dimensions | 17.28±4.94 km 18.042±0.245 km 19.95 km (derived) 20.05±2.1 km 20.77±0.63 km |
Synodic rotation period | 11.1098±0.0004 h 11.5±0.1 h 11.581±0.0194 h |
| 0.0444 (derived) 0.06±0.04 0.068±0.005 0.0697±0.017 0.073±0.008 | |
| C | |
| 12.00 · 12.5 · 12.507±0.010 (R) · 12.53±0.34 (R) | |
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