Asteroid 113 Amalthea
Named after Amalthea, in Greek mythology the most often mentioned among foster-mothers of Zeus.
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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 | 2444402,5 |
| Semi major axis | 2,3758 AU |
| Period [Julian yrs] | 3,662 Julian years |
| Inclination | 5,038 ° |
| Eccentricity | 0,0868 |
| Lon. of ascending node | 123,741 ° |
| Argument of perihelion | 79,277 ° |
| Passage of perihelion | 1981-Apr-25.640256 |
| Aphelion distance | 2,5821 AU |
| Mean anomaly | 274,508 ° |
Physical Data
| Radius | 23,07 km |
| Rotation period | 9,935 days |
| Absolute magnitude (H) | 8,3557 |
| Magnitude Slope (G) | 0,35 |
| Color index (B-V) | 0,925 |
| Geometric albedo | 0,2649 |
| Spectral class | S |
Discovery Circumstances
| Discoverer | Robert Luther |
| Discovered | 1871-03-12 |
Data File
| Data File Name | 113_Amalthea.aed |
| Data File Date | 2006-12-22 |
| Data File Size | 2714 kB |
| Covered Period | 1800,00 - 2100,00 |
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