Asteroid 116 Sirona
Named after Sirona, the Celtic goddess of astronomy.
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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 | 2447976,5 |
| Semi major axis | 2,7697 AU |
| Period [Julian yrs] | 4,610 Julian years |
| Inclination | 3,572 ° |
| Eccentricity | 0,1383 |
| Lon. of ascending node | 64,127 ° |
| Argument of perihelion | 94,219 ° |
| Passage of perihelion | 1988-Oct-31.563651 |
| Aphelion distance | 3,1527 AU |
| Mean anomaly | 109,142 ° |
Physical Data
| Radius | 35,85 km |
| Rotation period | 12,028 days |
| Absolute magnitude (H) | 7,7072 |
| Magnitude Slope (G) | 0,15 |
| Color index (B-V) | 0,873 |
| Geometric albedo | 0,256 |
| Spectral class | Sk |
Discovery Circumstances
| Discoverer | Christian Heinrich Friedrich Peters |
| Discovered | 1871-09-08 |
Data File
| Data File Name | 116_Sirona.aed |
| Data File Date | 2006-12-22 |
| Data File Size | 2714 kB |
| Covered Period | 1800,00 - 2100,00 |
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