Back 4897 Tomhamilton (كويكب) ARZ (4897) Tomhamilton CE 4897 Tomhamilton Esperanto (4897) Tomhamilton Spanish سیارک ۴۸۹۷ Persian (4897) Tomhamilton French 4897 Tomhamilton Hungarian (4897) Թոմհամիլտոն Armenian 4897 Tomhamilton Italian 4897 Tomhamilton Latin
| Discovery [1] | |
|---|---|
| Discovered by | E. F. Helin |
| Discovery site | Palomar Obs. |
| Discovery date | 22 August 1987 |
| Designations | |
| (4897) Tomhamilton | |
Named after | Thomas William Hamilton (American writer)[2] |
| 1987 QD6 · 1971 QV1 1971 SB1 · 1990 BN1 | |
| main-belt · (outer) | |
| Orbital characteristics [1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 66.81 yr (24,402 days) |
| Aphelion | 3.4356 AU |
| Perihelion | 2.6792 AU |
| 3.0574 AU | |
| Eccentricity | 0.1237 |
| 5.35 yr (1,953 days) | |
| 262.29° | |
| 0° 11m 3.84s / day | |
| Inclination | 11.067° |
| 188.47° | |
| 107.13° | |
| Physical characteristics | |
| Dimensions | 13.711±0.369 km[3] |
| 0.215±0.065[3] | |
| 12.0[1] | |
4897 Tomhamilton, provisional designation 1987 QD6, is a stony asteroid from the outer region of the asteroid belt, approximately 14 kilometers in diameter. It was discovered on 22 August 1987, by American astronomer Eleanor Helin at Palomar Observatory, California. It was later named after American writer Thomas William Hamilton, an author of astronomy books and participant in the Apollo program.[2]
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