| Minorplanet: | yes |
| Background: |
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| 566 Stereoskopia | |
| Mpc Name: | (566) Stereoskopia |
| Alt Names: | 1905 QO |
| Discovered: | 28 May 1905 |
| Epoch: | 31 July 2016 (JD 2457600.5) |
| Eccentricity: | 0.11662 |
| Semimajor: | 3.3856AU |
| Perihelion: | 2.9908AU |
| Aphelion: | 3.7804abbr=onNaNabbr=on |
| Period: | 2275.4days |
| Inclination: | 4.8864° |
| Asc Node: | 79.644° |
| Arg Peri: | 298.527° |
| Rotation: | 12.103abbr=onNaNabbr=on |
| Mean Motion: | / day |
| Observation Arc: | 40491hours |
| Uncertainty: | 0 |
| Abs Magnitude: | 8.0 |
566 Stereoskopia is a large, outer main-belt asteroid orbiting the Sun. It was discovered on 28 May 1905 from Heidelberg by German astronomer Paul Götz. The discovery was made from photographic plates with the use of a stereo-comparator that had been provided by Carl Pulfrich, a German physicist at the Carl Zeiss Company. The asteroid name is a reference to this device.
This object is a member of the Cybele group located beyond the core of the main belt. It is orbiting at a distance of with a period of 2275.4days and an eccentricity of 0.12. The orbital plane is inclined at an angle of 4.9° to the plane of the ecliptic. Light curve analysis based on photometric data collected during 2008 provide a rotation period of for this asteroid. It spans a girth of approximately 167 km and is classified as a carbonaceous C-type asteroid.