58 Concordia
Orbital diagram
Discovery
Discovered byKarl Theodor Robert Luther
Discovery dateMarch 24, 1860
Designations
(58) Concordia
Pronunciation/kənˈkɔːrdiə/[1]
Named after
Concordia
Main belt Nemesis
AdjectivesConcordian
Orbital characteristics
Epoch December 31, 2006 (JD 2454100.5)
Aphelion2.818 AU (421.526 Gm)
Perihelion2.583 AU (386.457 Gm)
2.701 AU (403.991 Gm)
Eccentricity0.043
4.44 a (1620.946 d)
15.122°
Inclination5.057°
161.290°
34.465°
Physical characteristics
Dimensions93.4 km
Mass~5.89×1017 kg (calculated)
Mean density
1.38 g/cm3 (assumed)[2]
9.895±0.001 h[3]
0.058[4]
C
8.86

    Concordia (minor planet designation: 58 Concordia) is a fairly large main-belt asteroid that is orbiting the Sun with a period of 4.44 years, a semimajor axis of 2.7 AU, and a low eccentricity of 0.043. It is classified as a C-type asteroid, meaning that its surface is very dark and it is likely carbonaceous in composition. The surface spectra displays indications of hydrated minerals created through aqueous alteration.[5] The object is rotating with a sidereal period of 9.894541 h and pole orientations of (15.3°±0.7°, −4.2°±2.6°) and (195.9°±1.0°, 4.8°±1.2°).[6] It belongs to the Hungaria family of asteroids and has a satellite with an orbital period of 14.29 h.[3]

    Concordia was discovered by German astronomer Robert Luther on March 24, 1860. At Luther's request, it was named by Carl Christian Bruhns of the University of Leipzig after Concordia, the Roman goddess of harmony.[7]

    References

    1. ↑ "Concordia". Dictionary.com Unabridged (Online). n.d.
    2. ↑ https://ui.adsabs.harvard.edu/abs/2002Icar..158...98K
    3. 1 2 Pilcher, Frederick (October 2016), "Rotation Determinations for 50 Virginia, 58 Concordia 307 Nike, and 339 Dorothea", The Minor Planet Bulletin, 43 (4): 304–306, Bibcode:2016MPBu...43..304P.
    4. ↑ Asteroid Data Sets Archived 2009-12-17 at the Wayback Machine
    5. ↑ Fornasier, S.; et al. (May 2014), "Aqueous alteration on main belt primitive asteroids: Results from visible spectroscopy", Icarus, 233: 163–178, arXiv:1402.0175, Bibcode:2014Icar..233..163F, doi:10.1016/j.icarus.2014.01.040.
    6. ↑ Jiang, P. F.; Wang, X. B. (September 2018), "Photometric Study on Asteroid (58) Concordia", Acta Astronomica Sinica, 59 (5), Bibcode:2018AcASn..59...46J, 46.
    7. ↑ Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names. Springer Science & Business Media. p. 20. ISBN 978-3-540-00238-3.


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