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Klymene (minor planet designation: 104 Klymene) is a large, dark Themistian asteroid that was discovered by J. C. Watson on September 13, 1868, and named after one of the many Clymenes in Greek mythology.[4] It is orbiting the Sun with a period of 5.60 years and an eccentricity of 0.16. The orbital plane is inclined by 2.8° to the plane of the ecliptic. It is classified as a C-type asteroid, indicating it probably has a carbonaceous composition. The spectra indicates the presence of aqueous-altered minerals on the surface[5] based upon a sharp feature at a wavelength of 3 μm, and, as of 2015, is the only member of the Themis family found to show this absorption.[6]

104 Klymene
3D convex shape model of 104 Klymene
Discovery
Discovered byJames Craig Watson
Discovery date13 September 1868
Designations
MPC designation
(104) Klymene
Pronunciation/ˈklɪmɪniː/[1]
Alternative designations
A868 RB, 1893 FA
1951 OE, 1968 OS[2]
Minor planet category
Main belt
Orbital characteristics[3]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc130.58 yr (47693 d)
Aphelion3.6499 AU (546.02 Gm)
Perihelion2.65525 AU (397.220 Gm)
Semi-major axis
3.15256 AU (471.616 Gm)
Eccentricity0.15775
Orbital period (sidereal)
5.60 yr (2044.5 d)
Average orbital speed
16.67 km/s
Mean anomaly
101.498°
Mean motion
0° 10m 33.888s / day
Inclination2.7905°
Longitude of ascending node
41.698°
Argument of perihelion
32.134°
Earth MOID1.66901 AU (249.680 Gm)
Jupiter MOID1.63907 AU (245.201 Gm)
TJupiter3.186
Physical characteristics
Dimensions123.68±3.1 km
Mass2.0×1018 kg
Equatorial surface gravity
0.0346 m/s²
Equatorial escape velocity
0.0654 km/s
Synodic rotation period
8.984 h (0.3743 d)
Geometric albedo
0.0568±0.003
Temperature~157 K
Spectral type
C
Absolute magnitude (H)
8.27

    Based upon measurements made using adaptive optics at the W. M. Keck Observatory, this object may have a bi-lobed shape with a length of 163 ± 3 km and width of 103 ± 5 km, for an average dimension of 133 km.[7] This asteroid is located near the region of the Themis family but itself considered a background asteroid using HCM-analysis .[8] It is listed as a member of the Hecuba group of asteroids that orbit near the 2:1 mean-motion resonance with Jupiter.[9]


    References


    1. Noah Webster (1884) A Practical Dictionary of the English Language
    2. Bowen, Eliza A. (1893), "Visualizing the Earth's annual motion", Popular Astronomy, 1: 178–179, Bibcode:1893PA......1..178B.
    3. Yeomans, Donald K., "104 Klymene", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 12 May 2016.
    4. Dictionary of minor planet names, International Astronomical Union. Springer, 2003, p. 25
    5. Fornasier, S.; et al. (February 1999), "Spectroscopic comparison of aqueous altered asteroids with CM2 carbonaceous chondrite meteorites", Astronomy and Astrophysics Supplement Series, 135 (1): 65–73, Bibcode:1999A&AS..135...65F, doi:10.1051/aas:1999161.
    6. Hargrove, Kelsey D.; et al. (July 2015), "Asteroid (90) Antiope: Another icy member of the Themis family?", Icarus, 254: 150–156, Bibcode:2015Icar..254..150H, doi:10.1016/j.icarus.2015.03.008.
    7. Marchis, F.; et al. (November 2006), "Shape, size and multiplicity of main-belt asteroids. I. Keck Adaptive Optics survey", Icarus, vol. 185, no. 1, pp. 39–63, Bibcode:2006Icar..185...39M, doi:10.1016/j.icarus.2006.06.001, PMC 2600456, PMID 19081813.
    8. Moore, Patrick; Rees, Robin, eds. (2011), "Patrick Moore's Data Book of Astronomy", Patrick Moore's Data Book of Astronomy by Patrick Moore and Robin Rees. Cambridge University Press (2nd ed.), Cambridge University Press: 165, Bibcode:2011pmdb.book.....M, ISBN 9781139495226.
    9. McDonald, Sophia Levy (June 1948), "General perturbations and mean elements, with representations of 35 minor planets of the Hecuba group", Astronomical Journal, vol. 53, p. 199, Bibcode:1948AJ.....53..199M, doi:10.1086/106097.



    На других языках

    [de] (104) Klymene

    (104) Klymene ist ein Asteroid, der nach Klymene, einer der Okeaniden genannten Töchter des Titanen Okeanos und Mutter des Prometheus, benannt wurde.
    - [en] 104 Klymene

    [es] (104) Klymene

    (104) Klymene es un asteroide perteneciente al cinturón de asteroides descubierto el 13 de septiembre de 1868 por James Craig Watson desde el observatorio Detroit de Ann Arbor, Estados Unidos. Está nombrado por Clímene, un personaje de la mitología griega.[2]

    [ru] (104) Климена

    (104) Климена (лат. Klymene) — астероид из группы главного пояса, который принадлежит к тёмному спектральному классу C[1] и входит в состав семейства Фемиды[2] . Он был открыт 13 сентября 1868 года американским астрономом Дж. К. Уотсоном в Детройтской обсерватории, США и назван в честь одного из 10 персонажей древнегреческой мифологии с именем Климена[3].


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