Astronomy:315 Constantia
From HandWiki
Short description: Main-belt asteroid
_Constantia.png) 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) |
| 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) |
| |{{{apsis}}}|helion}} | 2.61963 astronomical unit|AU (391.891 Gm) |
| |{{{apsis}}}|helion}} | 1.86231 AU (278.598 Gm) |
| 2.24097 AU (335.244 Gm) | |
| Eccentricity | 0.16897 |
| Orbital period | 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° |
| 172.807° | |
| Physical characteristics | |
| Dimensions | 5 - 12 km |
| Rotation period | 5.345 h (0.2227 d) |
| Absolute magnitude (H) | 12.5 |
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]
References
- ↑ Constantia (3rd ed.), Oxford University Press, September 2005, http://oed.com/search?searchType=dictionary&q=Constantia (Subscription or UK public library membership required.)
- ↑ 2.0 2.1 "315 Constantia". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=315.
- ↑ 3.0 3.1 Cikota, S. et al. (February 2014), "A photometric search for active Main Belt asteroids", Astronomy & Astrophysics 562: 8, doi:10.1051/0004-6361/201321679, A94, Bibcode: 2014A&A...562A..94C.
External links
- 315 Constantia at AstDyS-2, Asteroids—Dynamic Site
- 315 Constantia at the JPL Small-Body Database
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