(100) Hekate Main-belt Asteroid
Discovered on 11 July 1868 by J. C. Watson at Ann Arbor.
Where Hekate is today
Seen from above the solar system on 2026-10-14: Hekate is 2.63 au from the Sun and 1.95 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 100 |
| Provisional designation | A868 NA |
| Orbit class | Main-belt Asteroid |
| Diameter | 85.7 km (#325 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.205 |
| Rotation period | 27.1 hours |
| Spectral type | S |
| Absolute magnitude (H) | 7.73 |
| Orbital period | 5.43 years |
| Semi-major axis | 3.09 au |
| Perihelion – aphelion | 2.57 – 3.61 au |
| Eccentricity | 0.168 |
| Inclination | 6.43° |
| Closest distance between its orbit and Earth's (MOID) | 1.56 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
More named asteroids discovered by J. C. Watson
- (79) Eurynome
- (93) Minerva
- (94) Aurora
- (101) Helena
- (103) Hera
- (104) Klymene
- (105) Artemis
- (106) Dione
- (115) Thyra
- (119) Althaea
- (121) Hermione
- (128) Nemesis
← (99) Dike · (101) Helena →