Asteroid 122 Gerda
Named after Gerda, the wife of the god Freyr in Norse 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 | 3,2217 AU |
| Period [Julian yrs] | 5,783 Julian years |
| Inclination | 1,639 ° |
| Eccentricity | 0,0407 |
| Lon. of ascending node | 178,431 ° |
| Argument of perihelion | 325,879 ° |
| Passage of perihelion | 2008-Mar-26.373678 |
| Aphelion distance | 3,3527 AU |
| Mean anomaly | 300,112 ° |
Physical Data
| Radius | 40,85 km |
| Rotation period | 10,685 days |
| Absolute magnitude (H) | 7,87 |
| Magnitude Slope (G) | 0,15 |
| Color index (B-V) | 0,776 |
| Geometric albedo | 0,1883 |
| Spectral class | L |
Discovery Circumstances
| Discoverer | Christian Heinrich Friedrich Peters |
| Discovered | 1872-07-31 |
Data File
| Data File Name | 122_Gerda.aed |
| Data File Date | 2006-12-22 |
| Data File Size | 2714 kB |
| Covered Period | 1800,00 - 2100,00 |
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