(1659) Punkaharju Main-belt Asteroid
Discovered on 28 December 1940 by Y. Vaisala at Turku.
Where Punkaharju is today
Seen from above the solar system on 2026-10-14: Punkaharju is 3.34 au from the Sun and 4.24 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 1659 |
| Provisional designation | 1940 YL |
| Orbit class | Main-belt Asteroid |
| Diameter | 28.0 km (#1,482 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.271 |
| Rotation period | 5.01 hours |
| Spectral type | S |
| Absolute magnitude (H) | 9.98 |
| Orbital period | 4.64 years |
| Semi-major axis | 2.78 au |
| Perihelion – aphelion | 2.06 – 3.51 au |
| Eccentricity | 0.261 |
| Inclination | 16.4° |
| Closest distance between its orbit and Earth's (MOID) | 1.08 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 28 December 1940
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
← (1658) Innes · (1660) Wood →