(27719) Fast Outer Main-belt Asteroid
Discovered on 26 September 1989 by E. W. Elst at La Silla.
Wilhelm Fast (1936-2005), a mathematician from Tomsk University, directed a project to measure the azimuths of the fallen trees due to the impact of the Tunguska body. From these data theoretical models of the impact were developed. The name also honors his daughter Annie (b. 1978), who assisted in subsequent projects.Naming citation (20060219/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Fast is today
Seen from above the solar system on 2026-10-14: Fast is 3.46 au from the Sun and 2.77 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 27719 |
| Provisional designation | 1989 SR3 |
| Orbit class | Outer Main-belt Asteroid |
| Diameter | 15.0 km (#3,153 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0460 |
| Absolute magnitude (H) | 13.32 |
| Orbital period | 6.26 years |
| Semi-major axis | 3.40 au |
| Perihelion – aphelion | 3.17 – 3.63 au |
| Eccentricity | 0.0686 |
| Inclination | 3.58° |
| Closest distance between its orbit and Earth's (MOID) | 2.18 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Wilhelm
- (6771) Foerster
- (10780) Apollinaire
- (11040) Wundt
- (11844) Ostwald
- (12398) Pickhardt
- (14366) Wilhelmraabe
- (16522) Tell
- (17637) Blaschke
- (17821) Bolsche
- (42492) Bruggenthies
- (55759) Erdmannsdorff
- (89455) Metzendorf
All asteroids named after someone called Wilhelm
Also discovered on 26 September 1989
- (4798) Mercator
- (5351) Diderot
- (5873) Archilochos
- (6240) Lucretius Carus
- (6777) Balakirev
- (6826) Lavoisier
- (7056) Kierkegaard
- (7647) Etrepigny
- (7934) Sinatra
- (8488) d'Argens
- (8649) Juglans
- (8834) Anacardium