(2804) Yrjo
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Asteroid (2804) Yrjö |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Asteroid family | Eos family |
| Major semi-axis | 3.0169 AU |
| eccentricity | 0.0707 |
| Perihelion - aphelion | 2.8037 AU - 3.2301 AU |
| Inclination of the orbit plane | 11.204 ° |
| Sidereal period | 5.240 a |
| Mean orbital velocity | 17.15 km / s |
| Physical Properties | |
| Medium diameter | 22.84 km |
| Albedo | 0.0708 |
| Rotation period | ? H |
| Absolute brightness | 11,171 mag |
| Spectral class | ? |
| history | |
| Explorer | Liisi Oterma |
| Date of discovery | April 19, 1941 |
| Another name | 1941 HF, 1951 EK 2 , 1979 QD |
| Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items. | |
(2804) Yrjö is an asteroid of the main belt that was discovered in Turku on April 19, 1941 by the Finnish astronomer Liisi Oterma .
The asteroid is named after the Finnish geodesist and astronomer Yrjö Väisälä .