767 Bondia
767 Bondia (prov. designation: A913 SD or 1913 SX) is a Themis asteroid from the outer regions of the asteroid belt, approximately 43 kilometers (27 miles) in diameter. It was discovered on 23 September 1913, by American astronomer Joel Hastings Metcalf at his observatory (799) in Winchester, Massachusetts. The B-type asteroid has a rotation period of 8.3 hours. It was named after William Cranch Bond (1789–1859) and his son George Phillips Bond (1825–1865), both American astronomers and directors of the Harvard College Observatory in Cambridge, Massachusetts.
Modelled shape of Bondia from its lightcurve | |
| Discovery | |
|---|---|
| Discovered by | J. H. Metcalf |
| Discovery site | Winchester Obs. |
| Discovery date | 23 September 1913 |
| Designations | |
MPC designation | (767) Bondia |
Named after | William Cranch Bond (1789–1859) George Phillips Bond (1825–1865) (American astronomers) |
Alternative designations | A913 SD · 1929 OA 1933 FO1 · 1938 DQ2 1957 UR · 1958 XA1 1959 AD · A902 SA 1913 SX |
Minor planet category | main-belt · (outer) Themis |
| Orbital characteristics | |
| Epoch 31 May 2020 (JD 2459000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 117.59 yr (42,949 d) |
| Aphelion | 3.6909 AU |
| Perihelion | 2.5531 AU |
Semi-major axis | 3.1220 AU |
| Eccentricity | 0.1822 |
Orbital period (sidereal) | 5.52 yr (2,015 d) |
Mean anomaly | 137.11° |
Mean motion | 0° 10m 43.32s / day |
| Inclination | 2.4118° |
Longitude of ascending node | 79.324° |
| 269.09° | |
| Physical characteristics | |
Mean diameter |
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Synodic rotation period | 8.3402±0.0007 h |
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| SMASS = B | |
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