116 Sirona
| Discovery | |
|---|---|
| Discovered by | Christian Heinrich Friedrich Peters |
| Discovery date | September 8, 1871 |
| Designations | |
|
Named after
|
Sirona |
| Main belt | |
| Orbital characteristics[1] | |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion | 471.228 Gm (3.150 AU) |
| Perihelion | 357.318 Gm (2.389 AU) |
| 414.273 Gm (2.769 AU) | |
| Eccentricity | 0.137 |
| 1683.220 d (4.61 a) | |
|
Average orbital speed
|
17.81 km/s |
| 340.279° | |
| Inclination | 3.569° |
| 64.036° | |
| 93.119° | |
| Physical characteristics | |
| Dimensions | 71.7 km |
| Mass | 3.9×1017 kg |
| 0.0200 m/s² | |
| 0.0379 km/s | |
| 12.028[2] h | |
| Temperature | ~167 K |
|
Spectral type
|
S |
| 7.82[2] | |
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116 Sirona is a somewhat large and bright-colored main-belt asteroid that was discovered by the German-American astronomer C. H. F. Peters on September 8, 1871, and named after Sirona, the Celtic goddess of healing.[3]
Photometric observations of this asteroid gave a light curve with a period of 12.028 hours and a brightness variation of 0.42 in magnitude.[2] It has the spectrum of an S-type asteroid.
References
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