(2118) Flagstaff Main-belt Asteroid
Discovered on 5 August 1978 by H. L. Giclas at Anderson Mesa.
Named for the city of Flagstaff, Arizona, where Percival Lowell founded the Lowell Observatory in 1894. In more recent times several other astronomical facilities have been set up in Flagstaff.Naming citation (MPC 5184), IAU / Minor Planet Center, via NASA/JPL
Where Flagstaff is today
Seen from above the solar system on 2026-10-14: Flagstaff is 3.04 au from the Sun and 3.44 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 2118 |
| Provisional designation | 1978 PB |
| Orbit class | Main-belt Asteroid |
| Diameter | 11.4 km (#4,340 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.214 |
| Rotation period | 15.2 hours |
| Spectral type | S |
| Absolute magnitude (H) | 11.8 |
| Orbital period | 4.06 years |
| Semi-major axis | 2.55 au |
| Perihelion – aphelion | 1.98 – 3.11 au |
| Eccentricity | 0.221 |
| Inclination | 6.30° |
| Closest distance between its orbit and Earth's (MOID) | 1.01 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
More named asteroids discovered by H. L. Giclas
- (1886) Lowell
- (2061) Anza
- (2201) Oljato
- (2313) Aruna
- (2347) Vinata
- (2415) Ganesa
- (3110) Wagman
- (3177) Chillicothe
- (3382) Cassidy
- (3487) Edgeworth
- (3695) Fiala
← (2117) Danmark · (2119) Schwall →