(3223) Forsius Main-belt Asteroid
Discovered on 7 September 1942 by Y. Vaisala at Turku.
Where Forsius is today
Seen from above the solar system on 2026-10-14: Forsius is 2.71 au from the Sun and 1.93 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 3223 |
| Provisional designation | 1942 RN |
| Orbit class | Main-belt Asteroid |
| Diameter | 20.1 km (#2,186 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.845 |
| Rotation period | 2.34 hours |
| Absolute magnitude (H) | 11.34 |
| Orbital period | 4.21 years |
| Semi-major axis | 2.61 au |
| Perihelion – aphelion | 2.24 – 2.98 au |
| Eccentricity | 0.141 |
| Inclination | 10.1° |
| Closest distance between its orbit and Earth's (MOID) | 1.28 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 7 September 1942
More named asteroids discovered by Y. Vaisala
- (1391) Carelia
- (1398) Donnera
- (1405) Sibelius
- (1406) Komppa
- (1407) Lindelof
- (1421) Esperanto
- (1424) Sundmania
- (1446) Sillanpaa
- (1447) Utra
- (1448) Lindbladia
- (1449) Virtanen
- (1450) Raimonda
← (3222) Liller · (3224) Irkutsk →