Astronomy:579 Sidonia

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579 Sidonia
Discovery
Discovered byA. Kopff
Discovery siteHeidelberg
Discovery date3 November 1905
Designations
(579) Sidonia
Pronunciation/sˈdniə/[1]
1905 SD
Orbital characteristics[2]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc109.22 yr (39891 d)
|{{{apsis}}}|helion}}3.2535 astronomical unit|AU (486.72 Gm)
|{{{apsis}}}|helion}}2.7680 AU (414.09 Gm)
3.0107 AU (450.39 Gm)
Eccentricity0.080631
Orbital period5.22 yr (1908.1 d)
Mean anomaly161.100°
Mean motion0° 11m 19.212s / day
Inclination11.009°
Longitude of ascending node82.737°
228.785°
Physical characteristics
Mean radius42.785±1.1 km
Rotation period16.286 h (0.6786 d)
Geometric albedo0.1748±0.009
Absolute magnitude (H)8.07[3]
7.85[2]


Sidonia (minor planet designation: 579 Sidonia) is a minor planet orbiting the Sun that was discovered by the German astronomer August Kopff on November 3, 1905. It was named after a character in Christoph Willibald Gluck's opera Armide. The name may have been inspired by the asteroid's provisional designation 1905 SD.

This is a member of the dynamic Eos family of asteroids that most likely formed as the result of a collisional breakup of a parent body.[4]

References

  1. "Sidonian". Sidonian. Oxford University Press. http://www.lexico.com/definition/Sidonian. 
  2. 2.0 2.1 Yeomans, Donald K., "579 Sidonia", JPL Small-Body Database Browser (NASA Jet Propulsion Laboratory), https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=579, retrieved 5 May 2016. 
  3. Warner, Brian D. (December 2007), "Initial Results of a Dedicated H-G Project", The Minor Planet Bulletin 34: pp. 113–119, Bibcode2007MPBu...34..113W. 
  4. Veeder, G. J. et al. (March 1995), "Eos, Koronis, and Maria family asteroids: Infrared (JHK) photometry", Icarus 114: pp. 186–196, doi:10.1006/icar.1995.1053, Bibcode1995Icar..114..186V. 

External links