315 Constantia
Shape model of Constantia from its lightcurve | |
| Discovery | |
|---|---|
| Discovered by | Johann Palisa |
| Discovery date | 4 September 1891 |
| Designations | |
| (315) Constantia | |
| Pronunciation | /kənˈstænʃ(i)ə/ |
Named after | constancy (virtue) |
| main-belt | |
| Orbital characteristics | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 87.27 yr (31874 d) |
| Aphelion | 2.61963 AU (391.891 Gm) |
| Perihelion | 1.86231 AU (278.598 Gm) |
| 2.24097 AU (335.244 Gm) | |
| Eccentricity | 0.16897 |
| 3.35 yr (1225.3 d) | |
Average orbital speed | 19.9 km/s |
| 86.6748° | |
| 0° 17m 37.673s / day | |
| Inclination | 2.42916° |
| 161.661° | |
| 172.807° | |
| Physical characteristics | |
| Dimensions | 5 - 12 km |
| 5.345 h (0.2227 d) | |
| 12.5 | |
315 Constantia is a stony background asteroid from the inner region of the asteroid belt, approximately 6.5 kilometers (4 miles) 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 5.345±0.003 h and shows a brightness variation of 0.57±0.2 in magnitude.