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Discovery
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| Discovered by | Karl Theodor Robert Luther |
| Discovery date | March 15, 1872 |
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Designations
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| Named after | Peitho |
| Alternate name(s) | |
| Minor planet category |
Main belt |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion | 424.156 Gm (2.835 AU) |
| Perihelion | 304.927 Gm (2.038 AU) |
| Semi-major axis | 364.541 Gm (2.437 AU) |
| Eccentricity | 0.164 |
| Orbital period | 1389.411 d (3.80 a) |
| Average orbital speed | 18.95 km/s |
| Mean anomaly | 224.181° |
| Inclination | 7.743° |
| Longitude of ascending node | 47.743° |
| Argument of perihelion | 33.655° |
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Physical characteristics
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| Dimensions | 41.7 km |
| Mass | 7.6×1016 kg |
| Mean density | ? g/cm³ |
| Equatorial surface gravity | 0.0117 m/s² |
| Escape velocity | 0.0220 km/s |
| Rotation period | ? d |
| Albedo | ? |
| Temperature | ~178 K |
| Spectral type | S |
| Absolute magnitude (H) | 9.14 |
118 Peitho is a main-belt asteroid. It is probably an S-type asteroid. It was discovered by R. Luther on March 15, 1872, and named after one of the two Peithos in Greek mythology. There have been two observed Peithoan occultations of a dim star: one was in 2000 and the other in 2003.[1][2]
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