 Shape model of Constantia from its lightcurve | |
| Discovery | |
|---|---|
| Discovered by | Johann Palisa |
| Discovery date | 4 September 1891 |
| Designations | |
| (315) Constantia | |
| Pronunciation | /kənˈstænʃ(i)ə/ [1] |
Named after | constancy (virtue) |
| main-belt | |
| Orbital characteristics [2] | |
| 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, [3] approximately 6.5 kilometers (4 miles) in diameter. [2] 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. [3]
