(2840) Kallavesi Main-belt Asteroid
Discovered on 15 October 1941 by L. Oterma at Turku.
Where Kallavesi is today
Seen from above the solar system on 2026-10-14: Kallavesi is 2.19 au from the Sun and 1.52 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 2840 |
| Provisional designation | 1941 UP |
| Orbit class | Main-belt Asteroid |
| Diameter | 7.70 km (#6,870 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.231 |
| Rotation period | 105 hours |
| Spectral type | Sl |
| Absolute magnitude (H) | 12.67 |
| Orbital period | 3.71 years |
| Semi-major axis | 2.40 au |
| Perihelion – aphelion | 2.17 – 2.62 au |
| Eccentricity | 0.0944 |
| Inclination | 8.51° |
| Closest distance between its orbit and Earth's (MOID) | 1.18 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also discovered on 15 October 1941
- (1544) Vinterhansenia
- (1545) Thernoe
- (1695) Walbeck
- (1882) Rauma
- (2805) Kalle
- (2946) Muchachos
- (3381) Mikkola
- (3597) Kakkuri
More named asteroids discovered by L. Oterma
- (1504) Lappeenranta
- (1507) Vaasa
- (1522) Kokkola
- (1540) Kevola
- (1544) Vinterhansenia
- (1545) Thernoe
- (1558) Jarnefelt
- (1559) Kustaanheimo
- (1679) Nevanlinna
- (1680) Per Brahe
- (1695) Walbeck
- (1705) Tapio
← (2839) Annette · (2841) Puijo →