| Discovery | |
|---|---|
| Discovered by | August Kopff |
| Discovery site | Heidelberg |
| Discovery date | 11 September 1907 |
| Designations | |
| MPC designation | (646) Kastalia |
| Pronunciation | /kæˈsteɪliə/ |
| Alternative designations | 1907 AC |
| Orbital characteristics | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 108.60 yr (39665 d) |
| Aphelion | 2.8200 AU (421.87 Gm) |
| Perihelion | 1.8300 AU (273.76 Gm) |
| Semi-major axis | 2.3250 AU (347.82 Gm) |
| Eccentricity | 0.21291 |
| Orbital period (sidereal) | 3.55 yr (1294.9 d) |
| Mean anomaly | 266.366° |
| Mean motion | 0° 16 40.872 / day |
| Inclination | 6.9010° |
| Longitude of ascending node | 302.820° |
| Argument of perihelion | 38.142° |
| Physical characteristics | |
| Dimensions | 8.15±0.15 km |
| Absolute magnitude (H) | 12.6 |
646 Kastalia is a minor planet orbiting the Sun, not to be confused with the near-Earth asteroid 4769 Castalia.
References
- 'Castalia' in Noah Webster (1884) A Practical Dictionary of the English Language
- "646 Kastalia (1907 AC)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 5 May 2016.
External links
- 646 Kastalia at AstDyS-2, Asteroids—Dynamic Site
- 646 Kastalia at the JPL Small-Body Database
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