223 Rosa
Rosa (minor planet designation: 223 Rosa) is a large Themistian asteroid. It is classified as a combination of C-type and P-type asteroids, so it is probably composed of carbonaceous material rich in water ice. It was discovered by Johann Palisa on 9 March 1882, in Vienna. The origin of the name is not known.
| Discovery | |
|---|---|
| Discovered by | Johann Palisa |
| Discovery date | 9 March 1882 |
| Designations | |
| (223) Rosa | |
| A887 BA, 1942 EL | |
| Main belt (Themis) | |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 130.29 yr (47590 d) |
| Aphelion | 3.45415 AU (516.733 Gm) |
| Perihelion | 2.73689 AU (409.433 Gm) |
| 3.09552 AU (463.083 Gm) | |
| Eccentricity | 0.11586 |
| 5.45 yr (1989.3 d) | |
Average orbital speed | 16.94 km/s |
| 309.511° | |
| 0° 10m 51.488s / day | |
| Inclination | 1.93552° |
| 47.9276° | |
| 61.7716° | |
| Physical characteristics | |
Mean diameter | 87.61±4.4 km |
| 20.283 h (0.8451 d) | |
| 0.0309±0.003 | |
| CP | |
| 9.68,[1] 9.72[2] | |
Photometric observations made in 2011–2012 at the Organ Mesa Observatory in Las Cruces, New Mexico, produced a light curve with a period of 20.283 ± 0.002 hours and a brightness variation of 0.13 ± 0.02 in magnitude. The curve has two asymmetrical maxima and minima per 20.283-hour cycle.[3]
References
- Yeomans, Donald K., "223 Rosa", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 12 May 2016.
- Warner, Brian D. (December 2007), "Initial Results of a Dedicated H-G Project", The Minor Planet Bulletin, 34, pp. 113–119, Bibcode:2007MPBu...34..113W.
- Pilcher, Frederick (July 2012), "Rotation Period Determinations for 46 Hestia, 223 Rosa, 225 Henrietta, 266 Aline, 750 Oskar, and 765 Mattiaca", The Minor Planet Bulletin, 39 (3), pp. 171–173, Bibcode:2012MPBu...39..171P.
External links
- Lightcurve plot of 223 Rosa, Palmer Divide Observatory, B. D. Warner (2007)
- Asteroid Lightcurve Database (LCDB), query form (info)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- 223 Rosa at AstDyS-2, Asteroids—Dynamic Site
- 223 Rosa at the JPL Small-Body Database
This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.