.png) A three-dimensional model of 350 Ornamenta based on its light curve | |
| Discovery | |
|---|---|
| Discovered by | Auguste Charlois |
| Discovery date | 14 December 1892 |
| Designations | |
| MPC designation | (350) Ornamenta |
| Pronunciation | /ˌɔːrnəˈmɛntə/ |
| Alternative designations | 1892 U |
| Minor planet category | Main belt |
| Orbital characteristics | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 123.34 yr (45051 d) |
| Aphelion | 3.6041 AU (539.17 Gm) |
| Perihelion | 2.61365 AU (390.996 Gm) |
| Semi-major axis | 3.10885 AU (465.077 Gm) |
| Eccentricity | 0.15929 |
| Orbital period (sidereal) | 5.48 yr (2002.2 d) |
| Mean anomaly | 177.109° |
| Mean motion | 0° 10 47.316 / day |
| Inclination | 24.894° |
| Longitude of ascending node | 90.106° |
| Argument of perihelion | 338.34° |
| Physical characteristics | |
| Dimensions | 118.35±4.5 km |
| Synodic rotation period | 9.178 h (0.3824 d) |
| Geometric albedo | 0.0566±0.005 |
| Spectral type | C |
| Absolute magnitude (H) | 8.37 |
350 Ornamenta is a relatively large main-belt asteroid, measuring 118 km in diameter. It is classified as a C-type asteroid and is probably composed of carbonaceous material.
Ornamenta was discovered by Auguste Charlois on 14 December 1892, in Nice, France. It was named in 1905 in honor of Antoinette Horneman, who was a member of the Société astronomique de France.
During 2002, the asteroid was observed occulting a star. The resulting chords provided a diameter estimate of 99.5 km.
This object is the namesake of a family of 14–93 asteroids that share similar spectral properties and orbital elements; hence they may have arisen from the same collisional event. All members have a relatively high orbital inclination.
References
- Yeomans, Donald K., "164 Eva", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 11 May 2016.
- Schmadel, Lutz D. (2011). Dictionary of Minor Planet Names (Addendum to Fifth Edition: 2006–2008 ed.). Springer. ISBN 978-3-642-01966-1.
- Shevchenko, Vasilij G.; Tedesco, Edward F. (September 2006), "Asteroid albedos deduced from stellar occultations", Icarus, 184 (1): 211–220, Bibcode:2006Icar..184..211S, doi:10.1016/j.icarus.2006.04.006.
- Novaković, Bojan; et al. (November 2011), "Families among high-inclination asteroids", Icarus, vol. 216, no. 1, pp. 69–81, arXiv:1108.3740, Bibcode:2011Icar..216...69N, doi:10.1016/j.icarus.2011.08.016.
External links
- 350 Ornamenta at AstDyS-2, Asteroids—Dynamic Site
- 350 Ornamenta at the JPL Small-Body Database
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