Asteroid 119 Althaea
Named after Althaea, the mother of Meleager in Greek mythology.
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This file is not available for download, but provided by the Alcyone Ephemeris Small Body Data File DVD.
| Classification | Main-belt Asteroid |
Osculating Orbital Elements
| Epoch | 2454200,5 |
| Semi major axis | 2,5817 AU |
| Period [Julian yrs] | 4,148 Julian years |
| Inclination | 5,778 ° |
| Eccentricity | 0,0812 |
| Lon. of ascending node | 203,738 ° |
| Argument of perihelion | 171,275 ° |
| Passage of perihelion | 2006-Dec-23.204817 |
| Aphelion distance | 2,7912 AU |
| Mean anomaly | 25,613 ° |
Physical Data
| Radius | 28,65 km |
| Rotation period | 11,484 days |
| Absolute magnitude (H) | 8,42 |
| Magnitude Slope (G) | 0,15 |
| Color index (B-V) | 0,874 |
| Geometric albedo | 0,2306 |
| Spectral class | Sl |
Discovery Circumstances
| Discoverer | James Craig Watson |
| Discovered | 1872-04-03 |
Data File
| Data File Name | 119_Althaea.aed |
| Data File Date | 2006-12-22 |
| Data File Size | 2714 kB |
| Covered Period | 1800,00 - 2100,00 |
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