(6999) Meitner
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Asteroid (6999) Meitner |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Asteroid family | Levin family |
| Major semi-axis | 2.2806 AU |
| eccentricity | 0.0984 |
| Perihelion - aphelion | 2.0562 AU - 2.5050 AU |
| Inclination of the orbit plane | 5.5718 ° |
| Length of the ascending node | 155.4436 ° |
| Sidereal period | 3.44 a |
| Mean orbital velocity | 19.72 km / s |
| Physical Properties | |
| Absolute brightness | 14.1 mag |
| history | |
| Explorer |
CJ van Houten I. v. Houten-Groeneveld Tom Gehrels |
| Date of discovery | October 16, 1977 |
| Another name | 4379 T-3 , 1989 CB |
| 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. | |
(6999) Meitner is an asteroid of the main asteroid belt that was discovered on October 16, 1977 by the Dutch observation team Cornelis Johannes van Houten , Ingrid van Houten-Groeneveld and Tom Gehrels as part of the Third Trojan Survey on the Palomar Observatory ( IAU code 675) was discovered in California .
The asteroid was named after the Austrian - Swedish nuclear physicist Lise Meitner (1878–1968), who discovered the chemical element protactinium together with Otto Hahn in 1917 and who, together with her nephew Otto Robert Frisch, provided the first physical-theoretical explanation of nuclear fission in January 1939 .
See also
Web links
- Asteroid Meitner: Discovery Circumstances according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics, Cambridge, USA
- Asteroid Meitner in the Small-Body Database of NASA's Jet Propulsion Laboratory at the California Institute of Technology, Pasadena, USA
- (6999) Meitner in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).