(1913) Sekanina
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Asteroid (1913) Sekanina |
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|---|---|
| Properties of the orbit ( animation ) | |
| Orbit type | Main belt |
| Asteroid family | Koronis family |
| Major semi-axis | 2.883 AU |
| eccentricity | 0.076 |
| Perihelion - aphelion | 2.663 AU - 3.103 AU |
| Inclination of the orbit plane | 1.6 ° |
| Length of the ascending node | 358.4 ° |
| Argument of the periapsis | 34.1 ° |
| Time of passage of the perihelion | October 20, 2021 |
| Sidereal period | 4.90 a |
| Mean orbital velocity | 17.5 km / s |
| Physical Properties | |
| Medium diameter | (13.4 ± 2.9) km |
| Albedo | 0.22 |
| Rotation period | 13.97 h |
| Absolute brightness | 11.5 likes |
| history | |
| Explorer | Karl Wilhelm Reinmuth |
| Date of discovery | September 22, 1928 |
| Another name | 1928 SF , 1950 EQ, 1959 AB, 1962 QJ, 1969 AY, 1972 RN 2 |
| 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. | |
(1913) Sekanina is an asteroid of the main belt , which was discovered on September 22, 1928 by the German astronomer KW Reinmuth at the State Observatory in Heidelberg-Königstuhl at a brightness of 14 mag. After being observed for three consecutive nights, it was not found again until 1950.
It is a member of the Koronis family, a group of asteroids formed by the splintering of (158) Koronis .
The asteroid was after in Czech -born American US astronomer Zdenek Sekanina from the Harvard-Smithsonian Center for Astrophysics in Massachusetts named in recognition of his numerous contributions to the field of comet astronomy , particularly the calculation of orbits , the development of models for the nuclei from Ice and a detailed study of the dust tails .
See also
Web links
- (1913) Sekanina in the Small-Body Database of the Jet Propulsion Laboratory (English).
- (1913) Sekanina in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
Individual evidence
- ↑ (1913) Sekanina at the IAU Minor Planet Center (English)