(13923) Peterhof Main-belt Asteroid
Discovered on 22 October 1985 by L. V. Zhuravleva at Nauchnyj.
Peterhof, celebrating its 300th anniversary in 2005, was founded near St. Petersburg as a royal seaside summer residence. It later acquired worldwide fame for its fundamental unity of architecture, gardens and engineering arts. Nowadays, the town of Peterhof is a developing scientific and educational center.Naming citation (20050523/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Peterhof is today
Seen from above the solar system on 2026-10-14: Peterhof is 3.15 au from the Sun and 4.13 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 13923 |
| Provisional designation | 1985 UA5 |
| Orbit class | Main-belt Asteroid |
| Diameter | 9.07 km (#5,701 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.215 |
| Rotation period | 16.3 hours |
| Absolute magnitude (H) | 12.87 |
| Orbital period | 4.36 years |
| Semi-major axis | 2.67 au |
| Perihelion – aphelion | 2.12 – 3.22 au |
| Eccentricity | 0.206 |
| Inclination | 15.5° |
| Closest distance between its orbit and Earth's (MOID) | 1.13 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 22 October 1985
- (4032) Chaplygin
- (4740) Veniamina
- (4936) Butakov
- (5101) Akhmerov
- (7278) Shtokolov
- (9014) Svyatorichter
- (11268) Spassky
- (14349) Nikitamikhalkov