Astronomy:223 Rosa
| Discovery | |
|---|---|
| Discovered by | Johann Palisa |
| Discovery date | 9 March 1882 |
| Designations | |
| (223) Rosa | |
| A882 EA, 1887 BA 1942 EL | |
| Minor planet category | Main belt (Themis) |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 130.29 yr (47590 d) |
| |{{{apsis}}}|helion}} | 3.45415 astronomical unit|AU (516.733 Gm) |
| |{{{apsis}}}|helion}} | 2.73689 AU (409.433 Gm) |
| 3.09552 AU (463.083 Gm) | |
| Eccentricity | 0.11586 |
| Orbital period | 5.45 yr (1989.3 d) |
| Average Orbital speed | 16.94 km/s |
| Mean anomaly | 309.511° |
| Mean motion | 0° 10m 51.488s / day |
| Inclination | 1.93552° |
| Longitude of ascending node | 47.9276° |
| 61.7716° | |
| Physical characteristics | |
| Mean diameter | 82.7±8.4 km[2] |
| Rotation period | 20.283 h (0.8451 d) |
| Geometric albedo | 0.0309±0.003 |
| CP | |
| Absolute magnitude (H) | 9.68,[1] 9.72[3] |
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.
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.[4]
A flyby of Rosa by the JUICE spacecraft, which is planned to pass through the asteroid belt twice, was proposed to occur on 15 October 2029.[2] However, the mission team ultimately decided against the proposed flyby to maximize fuel for the primary mission.[5]
References
- ↑ 1.0 1.1 Yeomans, Donald K., "223 Rosa", JPL Small-Body Database Browser (NASA Jet Propulsion Laboratory), https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=223, retrieved 12 May 2016.
- ↑ 2.0 2.1 Avdellidou, C.; Pajola, M.; Lucchetti, A.; Agostini, L.; Delbo, M.; Mazzotta Epifani, E.; Bourdelle De Micas, J.; Devogèle, M. et al. (2021). "Characterisation of the main belt asteroid (223) Rosa". Astronomy & Astrophysics 656: L18. doi:10.1051/0004-6361/202142600. Bibcode: 2021A&A...656L..18A.
- ↑ 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.
- ↑ European Space Agency [@ESA_JUICE]. "🧃 Time for another visit to the #ESAJuice bar 😉 At 8⃣% of the way to Jupiter, we have an update on our journey. We had been considering slightly diverting Juice to visit an asteroid en route to #Jupiter. To maximise fuel for our main mission (the tour around the gas giant and its icy moons), we have decided against this asteroid flyby.". https://twitter.com/ESA_JUICE/status/1735309949272465799. Missing or empty |date= (help)
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
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