(23450) Birkenstock Main-belt Asteroid
Discovered on 13 February 1988 by E. W. Elst at La Silla.
Charles Birkenstock (c. 1860-1928) was the director of the Bureau Central Météorique (founded in 1910) and the Société astronomique d´Anvers (founded in 1905). In the Gazette Astronomique, he published observations on meteors regularly.Naming citation (MPC batch dated 2015-12-25), IAU / Minor Planet Center, via NASA/JPL
Where Birkenstock is today
Seen from above the solar system on 2026-10-14: Birkenstock is 2.28 au from the Sun and 3.20 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 23450 |
| Provisional designation | 1988 CB4 |
| Orbit class | Main-belt Asteroid |
| Diameter | 2.92 km (#15,400 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.157 |
| Absolute magnitude (H) | 15.61 |
| Orbital period | 3.20 years |
| Semi-major axis | 2.17 au |
| Perihelion – aphelion | 1.99 – 2.35 au |
| Eccentricity | 0.0838 |
| Inclination | 6.70° |
| Closest distance between its orbit and Earth's (MOID) | 1.01 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Charles
- (1991) Darwin
- (4603) Bertaud
- (4939) Scovil
- (5202) Charleseliot
- (7011) Worley
- (7781) Townsend
- (9714) Piazzismyth
- (10320) Reiland
- (11356) Chuckjones
- (11778) Kingsford Smith
- (11849) Fauvel
- (12259) Szukalski
All asteroids named after someone called Charles
Also discovered on 13 February 1988
- (3870) Mayre
- (4609) Pizarro
- (4636) Chile
- (4705) Secchi
- (5115) Frimout
- (5956) d'Alembert
- (6036) Weinberg
- (6439) Tirol
- (6598) Modugno
- (6956) Holbach
- (9313) Protea
- (10506) Rydberg