655 Briseïs
655 Briseïs is a minor planet orbiting the Sun.
| Discovery | |
|---|---|
| Discovered by | Joel Hastings Metcalf |
| Discovery site | Taunton, Massachusetts |
| Discovery date | 4 November 1907 |
| Designations | |
MPC designation | (655) Briseïs |
| Pronunciation | /braɪˈsiːɪs/ |
Alternative designations | 1907 BF |
| Orbital characteristics | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 108.19 yr (39515 d) |
| Aphelion | 3.2489 AU (486.03 Gm) |
| Perihelion | 2.7297 AU (408.36 Gm) |
Semi-major axis | 2.9893 AU (447.19 Gm) |
| Eccentricity | 0.086836 |
Orbital period (sidereal) | 5.17 yr (1887.8 d) |
Mean anomaly | 8.32168° |
Mean motion | 0° 11m 26.52s / day |
| Inclination | 6.4972° |
Longitude of ascending node | 130.064° |
| 278.531° | |
| Physical characteristics | |
Mean radius | 15.395±0.95 km |
Synodic rotation period | 160.66 h (6.694 d) |
| 0.2693±0.036 | |
| 10.0 | |
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