(290) Bruna
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Asteroid (290) Bruna |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Asteroid family | Phocaea family |
| Major semi-axis | 2,338 AU |
| eccentricity | 0.2567 |
| Perihelion - aphelion | 1.738 AU - 2.938 AU |
| Inclination of the orbit plane | 22.33 ° |
| Length of the ascending node | 10.534 ° |
| Argument of the periapsis | 105.0 ° |
| Time of passage of the perihelion | April 20, 2011 |
| Sidereal period | 3 a 210 d |
| Mean orbital velocity | 19.2 km / s |
| Physical Properties | |
| Medium diameter | approx. 10 km |
| Rotation period | 13.8 h |
| Absolute brightness | 11.5 likes |
| history | |
| Explorer | Johann Palisa |
| Date of discovery | March 20, 1890 |
| 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. | |
(290) Bruna is an asteroid of the main asteroid belt , which on March 20, 1890 by Johann Palisa the Observatory of Wien was discovered.
Bruna moves at a distance of 1.7 ( perihelion ) to 2.9 ( aphelion ) astronomical units in 3.6 years on an eccentric orbit around the sun . The orbit is inclined at 22.3 ° to the ecliptic , the orbital eccentricity is 0.26.
It was named after the city of Brno in 1892 at the suggestion of the Viennese court councilor August Biela . In 1993 another asteroid was named after Brno: (2889) Brno .