(4425) Bilk
Asteroid (4425) Bilk |
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Properties of the orbit ( animation ) | |
Orbit type | Main belt asteroid |
Asteroid family | Hertha family |
Major semi-axis | 2.36 AU |
eccentricity | 0.163 |
Perihelion - aphelion | 1.976 AU - 2.744 AU |
Inclination of the orbit plane | 3.31 ° |
Length of the ascending node | 67.91 ° |
Sidereal period | 3.63 a |
Physical Properties | |
Rotation period | 5 h 15 min |
Absolute brightness | 13.9 likes |
history | |
Explorer | Luboš Kohoutek |
Date of discovery | October 30, 1967 |
Another name | 1967 UQ 1983 EQ 1 1985 VE 3 |
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. |
(4425) Bilk is a main belt asteroid that was discovered on October 30, 1967 by the Czech astronomer Luboš Kohoutek from the Hamburg observatory .
The asteroid was named after Bilk , a district of Düsseldorf . In 1843, Johann Friedrich Benzenberg set up the private Düsseldorf observatory in Bilk , which became the property of the city of Düsseldorf after his death. From this observatory, Karl Theodor Robert Luther discovered a total of 24 asteroids between 1852 and 1890. The observatory was destroyed during an air raid in 1943.
Web links
- (4425) Bilk in the Small-Body Database of the Jet Propulsion Laboratory .