195 Eurykleia
3D convex shape model of 195 Eurykleia
Discovery
Discovered byJ. Palisa, 1879
Discovery date19 April 1879
Designations
(195) Eurykleia
Pronunciation/jʊrɪˈklə/[1]
A879 HA; 1949 QB2
Main belt
Orbital characteristics[2]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc131.99 yr (48,208 d)
Aphelion3.00 AU (449.33 Gm)
Perihelion2.75 AU (411.29 Gm)
2.88 AU (430.30 Gm)
Eccentricity0.044205
4.88 yr (1,781.9 d)
113.56°
0° 12m 7.308s / day
Inclination6.9718°
6.9930°
119.12°
Earth MOID1.77 AU (264.87 Gm)
Jupiter MOID2.01 AU (300.95 Gm)
TJupiter3.284
Physical characteristics
Mean radius
42.855±0.85 km
16.52178±0.00001 h[3]
0.0599±0.002
Ch[3]
9.01

    Eurykleia (minor planet designation: 195 Eurykleia) is a fairly large main belt asteroid. It was discovered by the Austrian astronomer Johann Palisa on April 19, 1879, and named after Euryclea, the wet-nurse of Odysseus in The Odyssey.

    This body is orbiting the Sun with a period of 4.88 years and a low eccentricity (ovalness) of 0.04. The orbital plane is inclined by 7° from the plane of the ecliptic. It is spinning with a rotation period of 16.5 hours and varies in brightness with an amplitude of 0.24 magnitude. The cross-section diameter of this body is 43 km. The asteroid has a taxonomic type of Ch in the SMASS classification,[3] which indicates it has a dark surface with a primitive carbonaceous composition.

    195 Eurykleia has been observed to occult stars twice, once in 2011 and again in 2021.

    References

    1. "Euryclea". Dictionary.com Unabridged (Online). n.d.
    2. "195 Eurykleia". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 6 May 2016.
    3. 1 2 3 Marciniak, A.; et al. (May 2019). "Thermal properties of slowly rotating asteroids: results from a targeted survey". Astronomy & Astrophysics. 625: 40. arXiv:1905.06056. Bibcode:2019A&A...625A.139M. doi:10.1051/0004-6361/201935129. A139.


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