(5143) Heracles
Asteroid (5143) Heracles |
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Properties of the orbit ( animation ) | |
Orbit type | Apollo type |
Major semi-axis | 1.8335 AU |
eccentricity | 0.7723 |
Perihelion - aphelion | 0.4176 AU - 3.2495 AU |
Inclination of the orbit plane | 9.0310 ° |
Length of the ascending node | 309.5146 ° |
Argument of the periapsis | 227.7824 ° |
Sidereal period | 2.48 a |
Mean orbital velocity | 22.00 km / s |
Physical Properties | |
Medium diameter | 4.843 ± 0.378 km |
Albedo | 0.227 ± 0.054 |
Rotation period | 2.7063 h |
Absolute brightness | 14.0 mag |
Spectral class | SMASSII : O |
history | |
Explorer | CS Shoemaker |
Date of discovery | November 7, 1991 |
Another name | 1991 VL , 1962 PG |
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. |
(5143) Heracles is a near-Earth asteroid of the Apollo type , which was discovered on November 7, 1991 by the American astronomer Carolyn Jean Spellmann Shoemaker at the Palomar Observatory .
The heavenly body is named after Heracles , the hero and demigod of Greek mythology .
In 2011, an approx. 600 (± 300) m tall companion of Heracles was discovered at the Arecibo Observatory , who circled him at a distance of approx. 8 (± 4) km and required approx. 40 to 57 hours for this.
See also
Web links
- Asteroid Heracles: Discovery Circumstances according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics, Cambridge, USA
- Asteroid Heracles in the Small-Body Database of NASA's Jet Propulsion Laboratory at the California Institute of Technology, Pasadena, USA
- (5143) Heracles in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- 3D orbit animation of (5143) Heracles (Java applet)