(1757) Porvoo
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Asteroid (1757) Porvoo |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 2.3517 AU |
| eccentricity | 0.1252 |
| Perihelion - aphelion | 2.0574 AU - 2.6461 AU |
| Inclination of the orbit plane | 3.978 ° |
| Sidereal period | 3,607 a |
| Mean orbital velocity | 19.42 km / s |
| Physical Properties | |
| Rotation period | 4.89 h |
| Absolute brightness | 13.36 mag |
| history | |
| Explorer | Yrjö Väisälä |
| Date of discovery | March 17, 1939 |
| Another name | 1939 FC, 1964 BB, 1968 FK |
| 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. | |
(1757) Porvoo is an asteroid of the main belt , which on 17 March 1939 by the Finnish astronomer Yrjö Väisälä at Turku was discovered.
The asteroid was named after the second oldest Finnish city, Porvoo .