2826 Ahti
2826 Ahti, provisional designation 1939 UJ, is a carbonaceous asteroid from the outer region of the asteroid belt, about 37 kilometers in diameter. The asteroid was discovered on 18 October 1939, by Finnish astronomer Yrjö Väisälä at Turku Observatory, Southwest Finland. It was named after Ahti from Finnish mythology.
| Discovery | |
|---|---|
| Discovered by | Y. Väisälä |
| Discovery site | Turku Obs. |
| Discovery date | 18 October 1939 |
| Designations | |
MPC designation | (2826) Ahti |
Named after | Ahti (Finnish mythology) |
Alternative designations | 1939 UJ · 1942 FH 1950 TG3 · 1968 UT2 1979 RG · 1980 VK1 |
Minor planet category | main-belt · (outer) |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 77.63 yr (28,355 days) |
| Aphelion | 3.3789 AU |
| Perihelion | 3.0708 AU |
Semi-major axis | 3.2248 AU |
| Eccentricity | 0.0478 |
Orbital period (sidereal) | 5.79 yr (2,115 days) |
Mean anomaly | 2.3046° |
Mean motion | 0° 10m 12.72s / day |
| Inclination | 15.466° |
Longitude of ascending node | 33.671° |
| 150.83° | |
| Physical characteristics | |
| Dimensions | 36.60 km (derived) 36.71±2.7 km (IRAS:24) 39.975±0.157 42.16±0.62 km 42.373±0.121 km 55.33±0.29 km |
Synodic rotation period | 24 h |
| 0.023±0.004 0.0471±0.0122 0.0479 (derived) 0.049±0.002 0.0628±0.010 (IRAS:24) | |
| C | |
| 11.1 · 10.80 · 11.00 · 11.25±0.25 | |
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