| Minorplanet: | yes |
| Background: |
|
| 116 Sirona | |
| Discovered: | 8 September 1871 |
| Mpc Name: | (116) Sirona |
| Alt Names: | A871 RA; ; ; |
| Epoch: | 31 July 2016 (JD 2457600.5) |
| Semimajor: | 2.76741AU |
| Perihelion: | 2.37322AU |
| Aphelion: | 3.1616abbr=onNaNabbr=on |
| Eccentricity: | 0.14244 |
| Period: | 4.60 yr (1681.5 d) |
| Inclination: | 3.5635° |
| Asc Node: | 63.724° |
| Arg Peri: | 94.932° |
| Avg Speed: | 17.81 km/s |
| Mass: | 3.9 kg |
| Surface Grav: | 0.0200 m/s2 |
| Escape Velocity: | 0.0379 km/s |
| Rotation: | 12.028abbr=onNaNabbr=on |
| Abs Magnitude: | 7.82 |
| Mean Motion: | / day |
| Observation Arc: | 143.31 yr (52345 d) |
| Uncertainty: | 0 |
| Moid: | 1.38451AU |
| Jupiter Moid: | 1.83156AU |
| Tisserand: | 3.321 |
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.
This body is orbiting the Sun with a period of 4.60 years and an eccentricity (ovalness) of 0.14. The orbital plane is inclined by 3.56° to the plane of the ecliptic. The cross-section diameter of this object is ~72 km. 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. It has the spectrum of an S-type asteroid, suggesting a siliceous composition.