.png) Three-dimensional model of 35 Leukothea created based on light-curve | |
| Discovery | |
|---|---|
| Discovered by | R. Luther |
| Discovery date | April 19, 1855 |
| Designations | |
Designation | (35) Leukothea |
| Pronunciation | /ljuːˈkɒθiə/[1] |
Named after | ΛευκοθέαLeykothea |
| 1948 DC;1950 RS1; 1976 WH | |
| Main belt | |
| Adjectives | Leukothean/ljuːˈkɒθiən/ |
| Symbol | .svg) (historical) |
| Orbital characteristics[2] | |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion | 549.374 Gm (3.672AU) |
| Perihelion | 345.074 Gm (2.307 AU) |
| 447.224 Gm (2.990 AU) | |
| Eccentricity | 0.228 |
| 1,887.983 d (5.17 a) | |
Averageorbital speed | 17.00 km/s |
| 77.469° | |
| Inclination | 7.938° |
| 353.817° | |
| 213.962° | |
| Physical characteristics | |
| 103.05 ± 1.2 km[3] | |
| Mass | (1.014 ± 0.491/0.321)×1018 kg[3] |
Meandensity | 1.769 ± 0.857/0.56 g/cm3[3] |
| ~0.0513 km/s | |
| 31.900[4] h | |
| Albedo | 0.066[5] |
| Temperature | ~162K |
Spectral type | C |
| 8.5 | |
35 Leukothea is a large, darkasteroid from theasteroid belt. It was discovered by German astronomerKarl Theodor Robert Luther on April 19, 1855,[6] and named afterLeukothea, a sea goddess inGreek mythology. Its historical symbol was apharos (ancient lighthouse); it was encoded inUnicode 17.0 as U+1CED0 (.svg)
).[7][8]
Leukothea is a C-type asteroid in theTholen classification system,[2] suggesting acarbonaceous composition. It is orbiting theSun with a period of 5.17 years and has a cross-sectional size of 103.1 km.
Photometric observations of this asteroid from the Organ Mesa Observatory inLas Cruces, New Mexico during 2010 gave alight curve with a rotation period of31.900±0.001 hours and a brightness variability of0.42±0.04 inmagnitude. This is consistent with previous studies in 1990 and 2008.[4]
The computedLyapunov time for this asteroid is 20,000 years, indicating that it occupies a chaotic orbit that will change randomly over time because ofgravitational perturbations of the planets.[9]
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