astro.wikisort.org - AsteroidAmalia (minor planet designation: 284 Amalia) is a large main belt asteroid.[2] It was discovered by Auguste Charlois on 29 May 1889 in Nice. This is classified as a Ch-type asteroid in the Bus taxonomy[3] and CX in the Tholen system.[4] It has been observed occulting stars on five occasions as of 2018, which provide a diameter estimate of 54±3 km via a fitted ellipse plot.[5]
284 Amalia|
Discovered by | Auguste Charlois |
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Discovery date | 29 May 1889 |
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MPC designation | (284) Amalia |
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Pronunciation | |
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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 | 122.66 yr (44,800 d) |
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Aphelion | 2.88122 AU (431.024 Gm) |
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Perihelion | 1.83631 AU (274.708 Gm) |
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Semi-major axis | 2.35876 AU (352.865 Gm) |
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Eccentricity | 0.22149 |
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Orbital period (sidereal) | 3.62 yr (1,323.2 d) |
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Average orbital speed | 19.39 km/s |
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Mean anomaly | 0.0848612° |
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Mean motion | 0° 16m 19.445s / day |
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Inclination | 8.05647° |
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Longitude of ascending node | 233.716° |
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Argument of perihelion | 58.0568° |
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Dimensions | 52.95±2.6 km |
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Synodic rotation period | 8.545 h (0.3560 d) |
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Geometric albedo | 0.0602±0.006 |
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Absolute magnitude (H) | 10.05 |
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References
- "284 Amalia". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 11 May 2016.
- "284 Amalia". Asteroid Occulation. Retrieved 6 April 2015.
- Gil-Hutton, R.; Cañada-Assandri, M. (March 2012), "Polarimetric survey of main-belt asteroids. II. Results for 58 B- and C-type objects", Astronomy & Astrophysics, 539: 4, Bibcode:2012A&A...539A.115G, doi:10.1051/0004-6361/201117237, A115.
- Clark, B. E.; et al. (December 2004), "Spectroscopy of X-Type Asteroids", The Astronomical Journal, 128 (6): 3070–3081, Bibcode:2004AJ....128.3070C, doi:10.1086/424856.
- Broughton, John (30 April 2018), "Asteroid Dimensions from Occultations", Worldwide Asteroidal Occultation Observations and Resources, retrieved 10 September 2021.
External links
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На других языках
[de] (284) Amalia
(284) Amalia ist ein Asteroid des inneren Asteroiden-Hauptgürtels, der am 29. Mai 1889 von Auguste Charlois am Observatorium von Nizza entdeckt wurde.
- [en] 284 Amalia
[es] (284) Amalia
(284) Amalia es un asteroide perteneciente al cinturón de asteroides descubierto el 29 de mayo de 1889 por Auguste Honoré Charlois desde el observatorio de Niza, Francia.
Se desconoce la razón del nombre.[2]
[ru] (284) Амалия
(284) Амалия (лат. Amalia) — небольшой астероид главного пояса, который открыл 29 мая 1889 года французский астроном Огюст Шарлуа в обсерватории Ниццы.
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