284 Amalia

Amalia (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
Orbital diagram
Discovery
Discovered byAuguste Charlois
Discovery date29 May 1889
Designations
(284) Amalia
Pronunciation/əˈmɑːliə/
A889 KA
Main belt
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc122.66 yr (44,800 d)
Aphelion2.88122 AU (431.024 Gm)
Perihelion1.83631 AU (274.708 Gm)
2.35876 AU (352.865 Gm)
Eccentricity0.22149
3.62 yr (1,323.2 d)
19.39 km/s
0.0848612°
0° 16m 19.445s / day
Inclination8.05647°
233.716°
2023-Oct-29
58.0568°
Physical characteristics
Dimensions52.95±2.6 km
8.545 h (0.3560 d)
0.0602±0.006
10.05

    References
    1. "284 Amalia". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 11 May 2016.
    2. "284 Amalia". Asteroid Occultation. Archived from the original on 4 March 2016. Retrieved 6 April 2015.
    3. 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.
    4. 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, S2CID 450504.
    5. Broughton, John (30 April 2018), "Asteroid Dimensions from Occultations", Worldwide Asteroidal Occultation Observations and Resources, retrieved 10 September 2021.


    This article is issued from Wikipedia. The text is licensed under Creative Commons - Attribution - Sharealike. Additional terms may apply for the media files.