astro.wikisort.org - Asteroid
Sirona (minor planet designation: 116 Sirona) is a somewhat large and bright-colored main-belt asteroid that was discovered by the German-American astronomer C. H. F. Peters on September 8, 1871, and named after Sirona, the Celtic goddess of healing.[3]
 3D convex shape model of 116 Sirona | |
| Discovery | |
|---|---|
| Discovered by | Christian Heinrich Friedrich Peters |
| Discovery date | 8 September 1871 |
| Designations | |
MPC designation | (116) Sirona |
| Pronunciation | /ˈsɪroʊnə/ |
Named after | Đīrona |
Alternative designations | A871 RA; 1954 UC3; 1998 EK13; 1998 ES21 |
Minor planet category | Main belt |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 143.31 yr (52345 d) |
| Aphelion | 3.1616 AU (472.97 Gm) |
| Perihelion | 2.37322 AU (355.029 Gm) |
Semi-major axis | 2.76741 AU (413.999 Gm) |
| Eccentricity | 0.14244 |
Orbital period (sidereal) | 4.60 yr (1681.5 d) |
Average orbital speed | 17.81 km/s |
Mean anomaly | 7.59231° |
Mean motion | 0° 12m 50.724s / day |
| Inclination | 3.5635° |
Longitude of ascending node | 63.724° |
Argument of perihelion | 94.932° |
| Earth MOID | 1.38451 AU (207.120 Gm) |
| Jupiter MOID | 1.83156 AU (273.997 Gm) |
| TJupiter | 3.321 |
| Physical characteristics | |
| Dimensions | 71.70±5.8 km |
| Mass | 3.9×1017 kg |
Equatorial surface gravity | 0.0200 m/s2 |
Equatorial escape velocity | 0.0379 km/s |
Synodic rotation period | 12.028 h (0.5012 d)[1][2] |
Geometric albedo | 0.2560±0.047 |
| Temperature | ~167 K |
Spectral type | S |
Absolute magnitude (H) | 7.82[1][2] |
This body is orbiting the Sun with a period of 4.60 years and an eccentricity (ovalness) of 0.14. The orbital plane is inclined by 3.56° to the plane of the ecliptic. The cross-section diameter of this object is ~72 km. Photometric observations of this asteroid gave a light curve with a period of 12.028 hours and a brightness variation of 0.42 in magnitude.[2] It has the spectrum of an S-type asteroid, suggesting a siliceous composition.
References
- Yeomans, Donald K., "116 Sirona", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 12 May 2016.
- Zeigler, K. W.; Florence, W. B. (June 1985), "Photoelectric photometry of asteroids 9 Metis, 18 Melpomene, 60 Echo, 116 Sirona, 230 Athamantis, 694 Ekard, and 1984 KD", Icarus, vol. 62, pp. 512–517, Bibcode:1985Icar...62..512Z, doi:10.1016/0019-1035(85)90191-5.
- Schmadel, Lutz D. (2003), Dictionary of Minor Planet Names (5th ed.), Springer, p. 26, ISBN 3540002383.
External links
- 116 Sirona at AstDyS-2, Asteroids—Dynamic Site
- 116 Sirona at the JPL Small-Body Database
 | This article about an S-type asteroid native to the asteroid belt is a stub. You can help Wikipedia by expanding it. |
На других языках
[de] (116) Sirona
Der Asteroid (116) Sirona wurde am 8. September 1871 von dem deutsch-US-amerikanischen Astronomen C.H.F. Peters entdeckt.- [en] 116 Sirona
[es] (116) Sirona
(116) Sirona es un asteroide perteneciente al cinturón de asteroides descubierto el 8 de septiembre de 1871 por Christian Heinrich Friedrich Peters desde el observatorio Litchfield de Clinton, Estados Unidos. Está nombrado por Sirona, una diosa de la mitología celta.[2][ru] (116) Сирона
(116) Сирона (лат. Sirona) — довольно крупный астероид главного пояса, принадлежащий к светлому спектральному классу S. Он был открыт 8 сентября 1871 года германо-американским астрономом К. Г. Ф. Петерсом в Клинтоне, США и назван в честь Сироны — кельтской богини астрономии[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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