_Constantia.png) 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/ |
| Named after | constancy (virtue) |
| Minor planet category | 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) |
| 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° 17 37.673 / 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 |
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.
References
- "Constantia". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
- ^ "315 Constantia". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 11 May 2016.
- ^ Cikota, S.; et al. (February 2014), "A photometric search for active Main Belt asteroids", Astronomy & Astrophysics, 562: 8, arXiv:1401.5527, Bibcode:2014A&A...562A..94C, doi:10.1051/0004-6361/201321679, A94.
External links
- 315 Constantia at AstDyS-2, Asteroids—Dynamic Site
- 315 Constantia at the JPL Small-Body Database
| Minor planets navigator | |
|---|---|
| Small Solar System bodies | |||||||
|---|---|---|---|---|---|---|---|
| Minor planets |
| ||||||
| Comets | |||||||
| Other | |||||||
_mathilde.jpg){kind=small} | This article about an S-type asteroid native to the asteroid belt is a stub. You can help Misplaced Pages by expanding it. |