astro.wikisort.org - AsteroidFelicitas (minor planet designation: 109 Felicitas) is a dark and fairly large main-belt asteroid. It was discovered by German-American astronomer C. H. F. Peters on October 9, 1869, and named after Felicitas, the Roman goddess of success.[5] The only observed stellar occultation by Felicitas is one from Japan (March 29, 2003).[6]
Main-belt asteroid
109 Felicitas 3D convex shape model of 109 Felicitas |
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Discovered by | Christian Heinrich Friedrich Peters |
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Discovery date | 9 October 1869 |
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MPC designation | (109) Felicitas |
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Pronunciation | [1] |
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Named after | Felicitas |
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Alternative designations | A869 TA; 1911 HA |
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Minor planet category | Main belt |
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Epoch 31 July 2016 (JD 2457600.5) |
Uncertainty parameter 0 |
Observation arc | 146.39 yr (53470 d) |
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Aphelion | 3.4971 AU (523.16 Gm) |
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Perihelion | 1.89658 AU (283.724 Gm) |
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Semi-major axis | 2.6968 AU (403.44 Gm) |
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Eccentricity | 0.29674 |
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Orbital period (sidereal) | 4.43 yr (1617.6 d) |
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Average orbital speed | 17.73 km/s |
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Mean anomaly | 30.6904° |
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Mean motion | 0° 13m 21.18s / day |
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Inclination | 7.8813° |
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Longitude of ascending node | 3.1617° |
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Argument of perihelion | 56.392° |
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Earth MOID | 0.920053 AU (137.6380 Gm) |
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Jupiter MOID | 1.95452 AU (292.392 Gm) |
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TJupiter | 3.291 |
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Dimensions | 89.44±2.5 km[2] 88.971 km[3] |
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Mass | 7.5×1017 kg |
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Equatorial surface gravity | 0.0250 m/s2 |
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Equatorial escape velocity | 0.0473 km/s |
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Synodic rotation period | 13.191 h (0.5496 d)[2][4] |
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Geometric albedo | 0.0699±0.004[2] 0.07 ± 0.02[3] |
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Temperature | ~170 K |
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Spectral type | GC (Tholen)[3] |
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Absolute magnitude (H) | 8.75,[2] 8.759[3] |
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This body is orbiting the Sun with a period of 4.43 years and an eccentricity (ovalness) of 0.3. Its orbital plane is inclined by 7.9° from the plane of the ecliptic. 109 Felicitas is classified as a carbonaceous GC-type asteroid. It is spinning with a rotation period of 13.2 hours. During 2002, 109 Felicitas was observed by radar from the Arecibo Observatory. The return signal matched an effective diameter of 89 ± 9 km. This is consistent with the asteroid dimensions computed through other means.[4]
References
- Noah Webster (1884) A Practical Dictionary of the English Language
- Yeomans, Donald K., "109 Felicitas", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 12 May 2016.
- Pravec, P.; et al. (May 2012), "Absolute Magnitudes of Asteroids and a Revision of Asteroid Albedo Estimates from WISE Thermal Observations", Asteroids, Comets, Meteors 2012, Proceedings of the conference held May 16–20, 2012 in Niigata, Japan, vol. 1667, no. 1667, p. 6089, Bibcode:2012LPICo1667.6089P.
- Magri, Christopher; et al. (January 2007), "A radar survey of main-belt asteroids: Arecibo observations of 55 objects during 1999–2003", Icarus, 186 (1): 126–151, Bibcode:2007Icar..186..126M, doi:10.1016/j.icarus.2006.08.018
- Schmadel, Lutz D. (2012), Dictionary of Minor Planet Names (6th ed.), Springer, p. 23, ISBN 978-3642297182.
- Observed minor planet occultation events, version of 2005 July 26
External links
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На других языках
[de] (109) Felicitas
(109) Felicitas ist ein Hauptgürtel-Asteroid. Er wurde von dem Astronomen C. H. F. Peters am 9. Oktober 1869 entdeckt und nach der gleichnamigen römischen Glücksgöttin benannt.
- [en] 109 Felicitas
[es] (109) Felicitas
(109) Felicitas es un asteroide que forma parte del cinturón de asteroides y fue descubierto el 9 de octubre de 1869 por Christian Heinrich Friedrich Peters desde el observatorio Litchfield de Clinton, Estados Unidos.
Está nombrado por la diosa que personifica a la felicidad.[2]
[ru] (109) Фелица
(109) Фелица (лат. Felicitas) — астероид главного пояса, принадлежащий к тёмному спектральному классу C. Он был открыт 9 октября 1869 года германо-американским астрономом К. Г. Ф. Петерсом в обсерватории Литчфилд, США и назван в честь Фелицитас, богини римской мифологии, олицетворявшей счастье и удачу[1].
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