(1913) Sekanina
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)