(100) Hecate
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Asteroid (100) Hecate |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Asteroid family | Hygiea family |
| Major semi-axis | 3,094 AU |
| eccentricity | 0.167 |
| Perihelion - aphelion | 2.576 AU - 3.612 AU |
| Inclination of the orbit plane | 6.4 ° |
| Length of the ascending node | 127.3 ° |
| Argument of the periapsis | 185.7 ° |
| Time of passage of the perihelion | March 10, 2010 |
| Sidereal period | 5 a 161 d |
| Mean orbital velocity | 16.8 km / s |
| Physical Properties | |
| Medium diameter | 89 km |
| Albedo | 0.19 |
| Rotation period | 27.1 h |
| Absolute brightness | 7.7 likes |
| Spectral class | S. |
| history | |
| Explorer | JC Watson |
| Date of discovery | July 11, 1868 |
| 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. | |
(100) Hecate is an asteroid named after Hecate , the goddess of magic, necromancy and the crossroads from Greek mythology . Hecate was the 100th asteroid discovered by JC Watson on July 11, 1868. He also chose this name for the fourth asteroid he discovered because Ekató stands for 'hundred' in Greek.
(100) Hecate is one of the largest members of the Hygiea family of asteroids. This family includes almost 5000 asteroids.
See also
Individual evidence
- ^ Discovery Circumstances: Numbered Minor Planets. The international Astronomical Union - Minor Planet Center, accessed July 26, 2020 .
- ↑ D. Nesvorny, M. Broz, V. Carruba Identification and Dynamical Properties of Asteroid Families , 2014, arXiv: 1502.01628