(90718) Castel Gandolfo Main-belt Asteroid
Discovered on 12 September 1991 by Borngen, F., Schmadel, L. D. at Tautenburg.
Castel Gandolfo is a small Italian town and the summer residence of the popes. The headquarters of the Vatican Observatory are located in the town.Naming citation (WGSBN Bull. 1, #6, 5), IAU / Minor Planet Center, via NASA/JPL
Where Castel Gandolfo is today
Seen from above the solar system on 2026-10-14: Castel Gandolfo is 3.74 au from the Sun and 4.62 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 90718 |
| Provisional designation | 1991 RW3 |
| Orbit class | Main-belt Asteroid |
| Absolute magnitude (H) | 15.48 |
| Orbital period | 5.34 years |
| Semi-major axis | 3.05 au |
| Perihelion – aphelion | 2.35 – 3.76 au |
| Eccentricity | 0.232 |
| Inclination | 4.97° |
| Closest distance between its orbit and Earth's (MOID) | 1.36 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Castel
All asteroids named after someone called Castel
Also discovered on 12 September 1991
- (6864) Starkenburg
- (9187) Walterkroll
- (9344) Klopstock
- (10782) Hittmair
- (21074) Rugen
- (21075) Heussinger
- (21076) Kokoschka
- (23490) Monikohl
- (24712) Boltzmann
- (24713) Ekrutt
- (27758) Michelson
- (46563) Oken