(7401) Toynbee Main-belt Asteroid
Discovered on 21 August 1987 by E. W. Elst at La Silla.
In his twelve-volume work A Study of History (1934-1961), renowned British historian Arnold J. Toynbee (1889-1975) analyzed the rise and fall of civilizations.Naming citation (20071124/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Toynbee is today
Seen from above the solar system on 2026-10-14: Toynbee is 2.31 au from the Sun and 2.25 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 7401 |
| Provisional designation | 1987 QW7 |
| Orbit class | Main-belt Asteroid |
| Diameter | 7.83 km (#6,749 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0520 |
| Absolute magnitude (H) | 14.51 |
| Orbital period | 3.81 years |
| Semi-major axis | 2.44 au |
| Perihelion – aphelion | 1.99 – 2.89 au |
| Eccentricity | 0.185 |
| Inclination | 2.04° |
| Closest distance between its orbit and Earth's (MOID) | 0.985 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 21 August 1987
- (4038) Kristina
- (4342) Freud
- (4405) Otava
- (5108) Lubeck
- (6120) Anhalt
- (6595) Munizbarreto
- (7009) Hume
- (7400) Lenau
- (7815) Dolon
- (9307) Regiomontanus
- (14354) Kolesnikov
- (48415) Dehio
More named asteroids discovered by E. W. Elst
- (3631) Sigyn
- (3784) Chopin
- (3870) Mayre
- (3903) Kliment Ohridski
- (3910) Liszt
- (3912) Troja
- (3918) Brel
- (4038) Kristina
- (4226) Damiaan
- (4342) Freud
- (4344) Buxtehude
- (4345) Rachmaninoff
← (7400) Lenau · (7403) Choustnik →