|Discovered by James Craig Watson|
Minor planet category Main belt
Aphelion 3.6499 AU (546.02 Gm)
Discoverer James Craig Watson
Discovery site Detroit Observatory
|Discovery date 13 September 1868|
Observation arc 130.58 yr (47693 d)
Discovered 13 September 1868
Spectral type C-type asteroid
Asteroid family Themis family
|Perihelion 2.65525 AU (397.220 Gm)|
Similar 121 Hermione, 165 Loreley, 188 Menippe, 132 Aethra, 107 Camilla
104 Klymene is a large, dark Themistian asteroid that was discovered by J. C. Watson on September 13, 1868, and named after one of the many Clymenes in Greek mythology. It is classified as a C-type asteroid, indicating it probably has a carbonaceous composition. The spectra indicates the presence of aqueous-altered minerals on the surface.
Based upon measurements made using adaptive optics at the W. M. Keck Observatory, this object may have a bi-lobed shape with a length of 163 ± 3 km and width of 103 ± 5 km, for an average dimension of 133 km. This asteroid is a member of the Themis family of asteroids that share similar orbital elements. It is listed as a member of the Hecuba group of asteroids that orbit near the 2:1 mean-motion resonance with Jupiter.