(20012) tendril
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Asteroid (20012) tendril |
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|---|---|
| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 2.6186 AU |
| eccentricity | 0.1129 |
| Perihelion - aphelion | 2.3228 AU - 2.9143 AU |
| Inclination of the orbit plane | 2.6068 ° |
| Sidereal period | 4.24 a |
| Mean orbital velocity | 18.40 km / s |
| Physical Properties | |
| Absolute brightness | 14.6 mag |
| history | |
| Explorer |
Freimut Börngen Lutz D. Schmadel |
| Date of discovery | September 13, 1991 |
| Another name | 1991 RV 4 |
| 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. | |
(20012) Ranke is an asteroid of the main belt that was discovered on September 13, 1991 by the German astronomers Freimut Börngen and Lutz D. Schmadel at the Thuringian State Observatory in Tautenburg ( IAU code 033) in Thuringia .
The asteroid was named after the German historian and historiographer Leopold von Ranke (1795–1886), who was Professor of History in Berlin from 1825 to 1871. With his methodology based on historicism , he created new approaches and is therefore considered one of the founding fathers of modern history.
See also
Web links
- Asteroid tendril: Discovery Circumstances according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics, Cambridge, USA
- (20012) Ranke in the Small-Body Database of the Jet Propulsion Laboratory (English).
- (20012) Tendril in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).