| Discovery[1] | |
|---|---|
| Discovered by | C. Shoemaker E. Shoemaker |
| Discovery site | Palomar Obs. |
| Discovery date | 4 June 1992 |
| Designations | |
| (7092) Cadmus | |
| Pronunciation | /ˈkædməs/[2] |
Named after | Cadmus (Greek mythology)[3] |
| 1992 LC | |
| NEO · Apollo[1][4] Alinda group | |
| Adjectives | Cadmean/kædˈmiːən/[5] |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 36.17 yr (13,211 days) |
| Aphelion | 4.3037AU |
| Perihelion | 0.7654 AU |
| 2.5345 AU | |
| Eccentricity | 0.6980 |
| 4.04yr (1,474 days) | |
| 117.29° | |
| Inclination | 17.811° |
| 57.700° | |
| 93.833° | |
| Earth MOID | 0.0972 AU · 37.9LD |
| Physical characteristics | |
| 3±0.5 km(est. at0.25)[6] | |
| 15.1[1] | |
7092 Cadmus, provisional designation1992 LC, is a highly eccentricasteroid andnear-Earth object of theApollo group, approximately 3 kilometers in diameter. It was discovered on 4 June 1992, by American astronomer coupleCarolyn andEugene Shoemaker atPalomar Observatory in California, United States.[4] The asteroid was named afterCadmus from Greek mythology.[3]
Cadmus orbits the Sun in thecentral main-belt at a distance of 0.8–4.3 AU once every 4.04 years (1,474 days). Its orbit has aneccentricity of 0.70 and aninclination of 18° with respect to theecliptic.[1] It is a member of theAlinda group of asteroids with a 3:1 resonance with Jupiter that has excited the eccentricity of the orbit over the eons.[7]
Due to aprecovery obtained at the AustralianSiding Spring Observatory, the body'sobservation arc already begins in 1980.[4]
It has an Earthminimum orbit intersection distance of 0.0972 AU (14,500,000 km), which corresponds to 37.9lunar distances.[1] On 7 December 2056, it will pass at 0.241 AU (36,100,000 km) from Earth.[8]
As of 2016, the asteroid's effective size, its composition and albedo, as well as itsrotation period and shape remain unknown.[1] Based on an absolutemagnitude of 15.1, it measures between 3 and 6 kilometers in diameter, assuming analbedo in the range of 0.05 to 0.25.[6] Since near-Earth asteroids are often of asilicaceous rather than of acarbonaceous composition, with higher albedos, typically above 0.20, the asteroid's diameter might be on the lower end of NASA's published conversion table, as the higher the body's reflectivity (albedo), the smaller its diameter, at a constant absolute magnitude (brightness).[6]
Thisminor planet is named forCadmus, the Phoenician prince, first king of Theben, and one of the greatest heroes before the days of Heracles. The minor planets1873 Agenor,52 Europa,5731 Zeus,881 Athene,40 Harmonia and1388 Aphrodite are named after related figures fromGreek mythology.[3]
