120 Lachesis
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| Orbital characteristics 1 (ftp://ftp.lowell.edu/pub/elgb/astorb.html) | |
|---|---|
| Orbit type | Main belt |
| Semimajor axis | 3.117 AU |
| Perihelion distance | 2.929 AU |
| Aphelion distance | 3.305 AU |
| Orbital period | 5.50 years |
| Inclination | 6.96° |
| Eccentricity | 0.060 |
| Physical characteristics 1 (ftp://ftp.lowell.edu/pub/elgb/astorb.html) | |
| Diameter | 174.1 km |
| Rotation period | 20 hours |
| Spectral class | C |
| Abs. magnitude | 7.75 |
| Albedo 4 (http://dorothy.as.arizona.edu/DSN/IRAS/index_iras.html) | 0.046 |
| History 2 (http://cfa-www.harvard.edu/iau/lists/NumberedMPs.html) | |
| Discoverer | A. Borrelly, 1872 |
120 Lachesis is a very large and very dark main belt asteroid. As a primitive C-type asteroid it is likely composed of carbonates.
It was discovered by Alphonse Borrelly on April 10, 1872 and named after one of the Moirae, or Fates, in Greek mythology.
The only observed Lachesean occultation is from 1999 and was recorded in the south-western United States.
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