Constantia (minor planet designation: 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]
![]() Shape model of Constantia from its lightcurve | |
| Discovery | |
|---|---|
| Discovered by | Johann Palisa |
| Discovery date | 4 September 1891 |
| Designations | |
MPC designation | (315) Constantia |
| Pronunciation | /kənˈstænʃ(i)ə/[1] |
Minor planet category | 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) |
Semi-major axis | 2.24097 AU (335.244 Gm) |
| Eccentricity | 0.16897 |
Orbital period (sidereal) | 3.35 yr (1225.3 d) |
Average orbital speed | 19.9 km/s |
Mean anomaly | 86.6748° |
Mean motion | 0° 17m 37.673s / day |
| Inclination | 2.42916° |
Longitude of ascending node | 161.661° |
Argument of perihelion | 172.807° |
| Physical characteristics | |
| Dimensions | 5 - 12 km |
Synodic rotation period | 5.345 h (0.2227 d) |
Absolute magnitude (H) | 12.5 |
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This article about an S-type asteroid native to the asteroid belt is a stub. You can help Wikipedia by expanding it. |