astro.wikisort.org - Asteroid
Oppavia (minor planet designation: 255 Oppavia) is a sizeable Main belt asteroid. It was discovered by Austrian astronomer Johann Palisa on 31 March 1886 in Vienna and was named after Opava, a town in the Czech Republic, then part of Austria-Hungary, where Palisa was born.[3] It is orbiting the Sun at a distance of 2.75 AU with an orbital eccentricity (ovalness) of 0.077 and a period of 4.55 yr. The orbital plane is inclined by an angle of 9.47° to the plane of the ecliptic.[1]
| Discovery | |
|---|---|
| Discovered by | Johann Palisa |
| Discovery date | 31 March 1886 |
| Designations | |
MPC designation | (255) Oppavia |
| Pronunciation | /ɒˈpeɪviə/ |
Named after | Opava |
Alternative designations | A886 FB, 1904 EC 1924 TA, 1938 VC 1938 XC, 1945 GD 1951 SG |
Minor planet category | Main belt |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 129.86 yr (47,431 d) |
| Aphelion | 2.959 AU (442.6 Gm) |
| Perihelion | 2.533 AU (379.0 Gm) |
Semi-major axis | 2.746 AU (410.8 Gm) |
| Eccentricity | 0.077427 |
Orbital period (sidereal) | 4.551 yr (1,662.1 d) |
Average orbital speed | 17.98 km/s |
Mean anomaly | 261.139° |
Mean motion | 0° 12m 59.735s / day |
| Inclination | 9.47209° |
Longitude of ascending node | 13.6708° |
Argument of perihelion | 156.011° |
| Physical characteristics | |
| Dimensions | 57.40±1.5 km |
Synodic rotation period | 19.499 h (0.8125 d) |
Geometric albedo | 0.0374±0.002 |
Spectral type | X[2] |
Absolute magnitude (H) | 10.39 |
Photometric observations made during 2013 indicate a synodic rotation period of 19.499±0.001 h with an amplitude of 0.16±0.02 in magnitude. The unusual light curve shows three uneven minima and maxima per cycle.[4] In 1995, 255 Oppavia was suggested as a peripheral member of the now defunct Ceres asteroid family,[5] but was found to be an unrelated interloper on the basis of its non-matching spectral type. It classified as a dark X-type asteroid in the Tholen taxonomy.[2]
References
- "255 Oppavia". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 12 May 2016.
- Lazzaro, D.; Angeli, C. A.; Carvano, J. M.; Mothé-Diniz, T.; Duffard, R.; Florczak, M. (November 2004). "S3OS2: the visible spectroscopic survey of 820 asteroids" (PDF). Icarus. 172 (1): 179–220. Bibcode:2004Icar..172..179L. doi:10.1016/j.icarus.2004.06.006. Retrieved 9 March 2022.
- Schmadel, Lutz D. (2013). Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 56. ISBN 9783662066157.
- Pilcher, Frederick (July 2013). "Rotation Period Determinations for 102 Miriam, 108 Hecuba, 221 Eos 225 Oppavia, and 745 Mauritia, and a Note on 871 Amneris". Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers. 40 (3): 158–160. Bibcode:2013MPBu...40..158P.
- Morbidelli, A.; et al. (November 1995). "Asteroid Families Close to Mean Motion Resonances: Dynamical Effects and Physical Implications" (PDF). Icarus. 118 (1): 132–154. Bibcode:1995Icar..118..132M. doi:10.1006/icar.1995.1181. Retrieved 9 April 2022.
External links
- The Asteroid Orbital Elements Database
- Minor Planet Discovery Circumstances
- Asteroid Lightcurve Data File
- Orbital simulation of asteroid 255 Oppavia
- Asteroid 255 Oppavia in Planetky z našich luhů a hájů (in Czech)
- 255 Oppavia at AstDyS-2, Asteroids—Dynamic Site
- 255 Oppavia at the JPL Small-Body Database
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На других языках
[de] (255) Oppavia
(255) Oppavia ist ein Asteroid des Asteroiden-Hauptgürtels, der am 31. März 1886 von Johann Palisa am Observatorium von Wien entdeckt wurde.- [en] 255 Oppavia
[es] (255) Oppavia
(255) Oppavia es un asteroide perteneciente al cinturón de asteroides descubierto el 31 de marzo de 1886 por Johann Palisa desde el observatorio de Viena, Austria. Está nombrado por Opava, una ciudad de la República Checa.[2][ru] (255) Оппавия
(255) Оппавия (чеш. Opavia) — типичный астероид главного пояса, принадлежащий к тёмным астероидам спектрального класса P. Он был открыт 31 марта 1886 года австрийским астрономом Иоганном Пализой в Венской обсерватории и назван в честь Опавы, города в Чехии (в то время являвшийся частью Австро-Венгрии), в котором родился Пализа[1].Другой контент может иметь иную лицензию. Перед использованием материалов сайта WikiSort.org внимательно изучите правила лицензирования конкретных элементов наполнения сайта.
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