|
Discovery
|
|
|---|---|
| Discovered by | Christian Heinrich Friedrich Peters |
| Discovery date | September 8, 1871 |
|
Designations
|
|
| Named after | Sirona |
| Alternate name(s) | |
| Minor planet category |
Main belt |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion | 471.228 Gm (3.150 AU) |
| Perihelion | 357.318 Gm (2.389 AU) |
| Semi-major axis | 414.273 Gm (2.769 AU) |
| Eccentricity | 0.137 |
| Orbital period | 1683.220 d (4.61 a) |
| Average orbital speed | 17.81 km/s |
| Mean anomaly | 340.279° |
| Inclination | 3.569° |
| Longitude of ascending node | 64.036° |
| Argument of perihelion | 93.119° |
|
Physical characteristics
|
|
| Dimensions | 71.7 km |
| Mass | 3.9×1017 kg |
| Mean density | ? g/cm³ |
| Equatorial surface gravity | 0.0200 m/s² |
| Escape velocity | 0.0379 km/s |
| Rotation period | ? d |
| Albedo | ? |
| Temperature | ~167 K |
| Spectral type | S |
| Absolute magnitude (H) | 7.82 |
116 Sirona is a somewhat large and bright-colored main-belt asteroid. It has an S-type spectrum. It was discovered by C. H. F. Peters on September 8, 1871, and named after Sirona, the Celtic goddess of healing.
|
|
|||||
|
||||||||||||||||||||||