| Minorplanet: | yes |
| 315 Constantia | |
| Background: |
|
| Discovered: | 4 September 1891 |
| Mpc Name: | (315) Constantia |
| Named After: | constancy (virtue) |
| Epoch: | 31 July 2016 (JD 2457600.5) |
| Semimajor: | 2.24097AU |
| Perihelion: | 1.86231AU |
| Aphelion: | 2.61963abbr=onNaNabbr=on |
| Eccentricity: | 0.16897 |
| Period: | 3.35 yr (1225.3 d) |
| Inclination: | 2.42916° |
| Asc Node: | 161.661° |
| Arg Peri: | 172.807° |
| Avg Speed: | 19.9 km/s |
| Dimensions: | 5 - 12 km |
| Rotation: | 5.345abbr=onNaNabbr=on |
| Abs Magnitude: | 12.5 |
| Mean Motion: | / day |
| Observation Arc: | 87.27 yr (31874 d) |
| Uncertainty: | 0 |
315 Constantia is a stony background asteroid from the inner region of the asteroid belt, approximately 6.5km (04miles) in diameter. It was discovered by Austrian astronomer Johann Palisa at the Vienna Observatory on 4 September 1891. The asteroid is a member of the Flora family. It is spinning with a rotation period of and shows a brightness variation of in magnitude.