(19994) Tresini Main-belt Asteroid
Discovered on 13 October 1990 by Karachkina, L. G., Kastel', G. R. at Nauchnyj.
Dominico Tresini (c. 1670-1734), architect and engineer, worked in St. Petersburg beginning in 1703 and is regarded as the city's first architect. He built the Peter and Paul fortress, the Summer Palace of Peter I and the House of 12 Boards, which now houses St. Petersburg University.Naming citation (20030318/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL
Where Tresini is today
Seen from above the solar system on 2026-10-14: Tresini is 2.70 au from the Sun and 2.95 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 19994 |
| Provisional designation | 1990 TJ15 |
| Orbit class | Main-belt Asteroid |
| Diameter | 5.24 km (#10,159 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.281 |
| Rotation period | 9.66 hours |
| Absolute magnitude (H) | 13.5 |
| Orbital period | 4.62 years |
| Semi-major axis | 2.78 au |
| Perihelion – aphelion | 2.28 – 3.27 au |
| Eccentricity | 0.177 |
| Inclination | 8.07° |
| Closest distance between its orbit and Earth's (MOID) | 1.30 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 13 October 1990
- (7414) Bosch
- (7580) Schwabhausen
- (7700) Rote Kapelle
- (8089) Yukar
- (8501) Wachholz
- (10090) Sikorsky
- (11050) Messiaen
- (13954) Born
- (14871) Pyramus
- (15263) Erwingroten
- (17458) Dick
- (17459) Andreashofer