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Discovery
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| Discovered by | James Craig Watson |
| Discovery date | April 3, 1872 |
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Designations
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| Named after | Althaea |
| Alternate name(s) | |
| Minor planet category |
Main belt |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion | 417.511 Gm (2.791 AU) |
| Perihelion | 354.870 Gm (2.372 AU) |
| Semi-major axis | 386.190 Gm (2.582 AU) |
| Eccentricity | 0.081 |
| Orbital period | 1515.000 d (4.15 a) |
| Average orbital speed | 18.51 km/s |
| Mean anomaly | 1.847° |
| Inclination | 5.778° |
| Longitude of ascending node | 203.738° |
| Argument of perihelion | 171.282° |
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Physical characteristics
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| Dimensions | 57.3 km |
| Mass | 2.0×1017 kg |
| Mean density | ? g/cm³ |
| Equatorial surface gravity | 0.0160 m/s² |
| Escape velocity | 0.0303 km/s |
| Rotation period | ? d |
| Albedo | ? |
| Temperature | ~173 K |
| Spectral type | S |
| Absolute magnitude (H) | 8.42 |
119 Althaea is a sizable main-belt asteroid. It is an S-type asteroid. It was discovered by J. C. Watson on April 3, 1872, and named after Althaea, the mother of Meleager in Greek mythology. Two occultations by Althaea were observed in 2002, only a month apart.
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