(18872) Tammann Main-belt Asteroid
Discovered on 8 November 1999 by S. Sposetti at Gnosca.
Swiss cosmologist Gustav Tammann (b. 1932), a professor of astronomy at the University of Basle, is a world-renowned specialist in the determination of the Hubble constant.Naming citation (20010705/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Tammann is today
Seen from above the solar system on 2026-10-14: Tammann is 2.44 au from the Sun and 3.43 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 18872 |
| Provisional designation | 1999 VR20 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.48 km (#9,734 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.162 |
| Absolute magnitude (H) | 13.42 |
| Orbital period | 4.18 years |
| Semi-major axis | 2.60 au |
| Perihelion – aphelion | 2.42 – 2.78 au |
| Eccentricity | 0.0691 |
| Inclination | 14.2° |
| Closest distance between its orbit and Earth's (MOID) | 1.41 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Gustav
- (6516) Gruss
- (9903) Leonhardt
- (10122) Froding
- (10358) Kirchhoff
- (11019) Hansrott
- (11041) Fechner
- (12637) Gustavleonhardt
- (14980) Gustavbrom
- (15860) Siran
- (16445) Klimt
- (24967) Fristensky
- (38976) Taeve
All asteroids named after someone called Gustav
Also discovered on 8 November 1999
- (13424) Margalida
- (18874) Raoulbehrend
- (20700) Saraheanderson
- (33800) Gross
- (41058) Lynxpardinus
- (70737) Stenflo
- (91898) Margnetti
- (102618) Marionacaldentey