(2243) Lonnrot Main-belt Asteroid
Discovered on 25 September 1941 by Y. Vaisala at Turku.
Where Lonnrot is today
Seen from above the solar system on 2026-10-14: Lonnrot is 2.47 au from the Sun and 2.40 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 2243 |
| Provisional designation | 1941 SA1 |
| Orbit class | Main-belt Asteroid |
| Diameter | 8.63 km (#6,043 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.180 |
| Rotation period | 3.68 hours |
| Absolute magnitude (H) | 12.54 |
| Orbital period | 3.37 years |
| Semi-major axis | 2.25 au |
| Perihelion – aphelion | 1.81 – 2.69 au |
| Eccentricity | 0.196 |
| Inclination | 6.84° |
| Closest distance between its orbit and Earth's (MOID) | 0.805 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 25 September 1941
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
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