(90698) Kosciuszko Main-belt Asteroid
Discovered on 1 March 1984 by E. Bowell at Anderson Mesa.
Andrzej Tadeusz Bonawentura Kościuszko (1746-1817) was a Polish military engineer who assisted in the American revolution with the design and building of military fortifications, including at West Point, New York. He led a 1794 attempt for independence of Poland from Imperial Russia, known as the Kościuszko uprising.Naming citation (MPC batch dated 2015-06-02), IAU / Minor Planet Center, via NASA/JPL
Where Kosciuszko is today
Seen from above the solar system on 2026-10-14: Kosciuszko is 2.79 au from the Sun and 2.04 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 90698 |
| Provisional designation | 1984 EA |
| Orbit class | Main-belt Asteroid |
| Diameter | 3.57 km (#13,776 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.297 |
| Rotation period | 5.01 hours |
| Absolute magnitude (H) | 14.52 |
| Orbital period | 3.67 years |
| Semi-major axis | 2.38 au |
| Perihelion – aphelion | 1.78 – 2.98 au |
| Eccentricity | 0.252 |
| Inclination | 24.0° |
| Closest distance between its orbit and Earth's (MOID) | 0.830 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Andrzej
All asteroids named after someone called Andrzej
Also discovered on 1 March 1984
- (3066) McFadden
- (3420) Standish
- (3931) Batten
- (4529) Webern
- (4530) Smoluchowski
- (4818) Elgar
- (5502) Brashear
- (5943) Lovi
- (9544) Scottbirney