(43087) Castegna Outer Main-belt Asteroid
Discovered on 28 November 1999 by S. Sposetti at Gnosca.
The cultivation of the sweet chestnut (Castanea sativa) was important for millennia for populations of several European mountain areas. “Castegna” is the local dialect name of both fruit and tree, which is the dominant tree around the observatory where this object was discovered.Naming citation (WGSBN Bull. 2, #16, 7), IAU / Minor Planet Center, via NASA/JPL
Where Castegna is today
Seen from above the solar system on 2026-10-14: Castegna is 3.76 au from the Sun and 3.51 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 43087 |
| Provisional designation | 1999 WW8 |
| Orbit class | Outer Main-belt Asteroid |
| Diameter | 13.3 km (#3,605 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0570 |
| Absolute magnitude (H) | 13.13 |
| Orbital period | 5.74 years |
| Semi-major axis | 3.20 au |
| Perihelion – aphelion | 2.51 – 3.90 au |
| Eccentricity | 0.217 |
| Inclination | 15.8° |
| Closest distance between its orbit and Earth's (MOID) | 1.53 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 28 November 1999
- (13437) Wellton-Persson
- (16110) Paganetti
- (17190) Retopezzoli
- (45027) Cosquer
- (47294) Blansky les
- (56329) Tarxien
- (66939) Franscini
- (70936) Kamen
- (70942) Vandanashiva
- (75223) Wupatki
- (97186) Tore