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58 Concordia

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Main-belt asteroid

58 Concordia
Discovery
Orbital diagram
Discovered by	Karl Theodor Robert Luther
Discovery date	March 24, 1860
Designations
MPC designation	(58) Concordia
Pronunciation	/kənˈkɔːrdiə/^[1]
Named after	Concordia
Minor planet category	Main belt Nemesis
Adjectives	Concordian
Orbital characteristics
Epoch December 31, 2006 (JD 2454100.5)
Aphelion	2.818AU (421.526 Gm)
Perihelion	2.583 AU (386.457 Gm)
Semi-major axis	2.701 AU (403.991 Gm)
Eccentricity	0.043
Orbital period (sidereal)	4.44a (1620.946 d)
Mean anomaly	15.122°
Inclination	5.057°
Longitude of ascending node	161.290°
Argument of perihelion	34.465°
Physical characteristics
Dimensions	93.4 km
Mass	~5.89×10¹⁷ kg (calculated)
Meandensity	1.38 g/cm³ (assumed)^[2]
Synodic rotation period	9.895±0.001 h^[3]
Geometric albedo	0.058^[4]
Spectral type	C
Absolute magnitude (H)	8.86

58 Concordia is a fairly largemain-belt asteroid that is orbiting the Sun with aperiod of 4.44 years, asemimajor axis of2.7 AU, and a loweccentricity of 0.043. It isclassified as aC-type asteroid, meaning that its surface is very dark and it is likelycarbonaceous in composition. The surface spectra displays indications ofhydrated minerals created through aqueous alteration.^[5] The object is rotating with asidereal period of9.894541 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 theNemesis family of asteroids.

Concordia was discovered by German astronomerRobert Luther on March 24, 1860. At Luther's request, it was named byKarl Christian Bruhns of theUniversity of Leipzig afterConcordia, theRoman goddess ofharmony.^[7]

References

[edit]

^"Concordia".Dictionary.com Unabridged (Online). n.d.
^Krasinsky, G. A.; Pitjeva, E. V.; Vasilyev, M. V.; Yagudina, E. I. (1 July 2002)."Hidden Mass in the Asteroid Belt".Icarus.158 (1):98–105.Bibcode:2002Icar..158...98K.doi:10.1006/icar.2002.6837 – via NASA ADS.
^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.
^"Asteroid Data Sets". Archived fromthe original on 17 December 2009.
^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.
^Jiang, P. F.; Wang, X. B. (September 2018), "Photometric Study on Asteroid (58) Concordia",Acta Astronomica Sinica,59 (5): 46,Bibcode:2018AcASn..59...46J, 46.
^Schmadel, Lutz D. (2003).Dictionary of Minor Planet Names. Springer Science & Business Media. p. 20.ISBN 978-3-540-00238-3.

External links

[edit]

58 Concordia atAstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
58 Concordia at theJPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters

v t e Minor planets navigator
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