16879 Campai
| Discovery | |
|---|---|
| Discovered by |
A. Boattini M. Tombelli |
| Discovery site | Pistoia Mountains Obs. |
| Discovery date | 24 January 1998 |
| Designations | |
| MPC designation | (16879) Campai |
|
Named after
|
Paolo Campai (amateur astronomer) |
| 1998 BH10 | |
| main-belt · (middle) | |
| Orbital characteristics | |
| Epoch 16 February 2017 (JD 2457800.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 38.62 yr (14,106 days) |
| Aphelion | 2.8274 AU |
| Perihelion | 2.6923 AU |
| 2.7598 AU | |
| Eccentricity | 0.0245 |
| 4.58 yr (1,675 days) | |
| 263.47° | |
| 0° 12m 54s / day | |
| Inclination | 7.1201° |
| 47.298° | |
| 230.77° | |
| Physical characteristics | |
| Dimensions | 10.61 km (calculated) |
| 314.2468±4.9149 h | |
| 0.057 (assumed) | |
| C | |
|
12.97±0.46 13.150±0.005 13.3 · 13.6 |
|
16879 Campai, provisional designation 1998 BH10, is carbonaceous asteroid and slow rotator from the middle region of the asteroid belt, approximately 11 kilometers in diameter. It was discovered on 24 January 1998, by Italian astronomers Andrea Boattini and Maura Tombelli at the Pistoia Mountains Astronomical Observatory in San Marcello Pistoiese, Tuscany, central Italy.
The dark C-type asteroid orbits the Sun at a distance of 2.7–2.8 AU once every 4 years and 7 months (1,675 days). Its orbit has an eccentricity of 0.02 and an inclination of 7° with respect to the ecliptic. The first precovery was obtained at Siding Spring Observatory in 1977, extending the asteroid's observation arc by 22 years prior to its discovery.
A rotational light-curve for this asteroid was obtained from photometric observations made at the U.S. Palomar Transient Factory in October 2010. It rendered an exceptionally long period of 314.2468±4.9149 hours with a brightness amplitude of 0.68 in magnitude (U=2). While the result is based on less than full coverage, and may be refined by future observations, the body is one of the slowest rotating asteroids known to exist. The Collaborative Asteroid Lightcurve Link calculates a diameter of 10.5 kilometers, based on an absolute magnitude of 13.6 and an assumed standard albedo for carbonaceous asteroids of 0.057.
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