(18398) Bregenz Mars-crossing Asteroid
Discovered on 23 September 1992 by F. Borngen at Tautenburg.
Bregenz, capital of the Austrian province of Vorarlberg, is situated on the east shore of the Lake Constance and is known for the festivals on its famous seaside stage. The region was already settled in the Bronze Age. Later, the Romans established the mercantile town of Brigantium, and there was also an Alemannian colony.Naming citation (20010309/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Bregenz is today
Seen from above the solar system on 2026-10-14: Bregenz is 2.25 au from the Sun and 3.22 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 18398 |
| Provisional designation | 1992 SQ23 |
| Orbit class | Mars-crossing Asteroid |
| Rotation period | 5.38 hours |
| Absolute magnitude (H) | 15.0 |
| Orbital period | 3.50 years |
| Semi-major axis | 2.31 au |
| Perihelion – aphelion | 1.59 – 3.02 au |
| Eccentricity | 0.311 |
| Inclination | 7.83° |
| Closest distance between its orbit and Earth's (MOID) | 0.600 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 23 September 1992
- (7188) Yoshii
- (7250) Kinoshita
- (8377) Elmerreese
- (8378) Sweeney
- (8382) Mann
- (8526) Takeuchiyukou
- (10351) Seiichisato
- (10801) Luneburg
- (11074) Kuniwake
- (11075) Donhoff
- (11915) Nishiinoue
- (12329) Liebermann