Hygiea (Asteroid)

Hygiea (Asteroid)
Asteroid
(10) Hygiea Astronomisches Symbol von Hygiea
Eigenschaften des Orbits (Simulation)
Orbittyp Hauptgürtel
Große Halbachse 3,1361 AE
Exzentrizität 0,1193
Perihel – Aphel 2,762 – 3,510 AE
Neigung der Bahnebene 3,8437°
Siderische Umlaufzeit 5,5539 Jahre
Physikalische Eigenschaften
Durchmesser 500×385×350 km
Masse ≈9·1019 [1] kg
Albedo 0,041
Mittlere Dichte 2,6 g/cm³
Rotationsperiode 27,623 h
Absolute Helligkeit 5,43
Spektralklasse C-Typ
Geschichte
Entdecker Annibale de Gasparis
Datum der Entdeckung 12. April 1849

(10) Hygiea (früher (10) Hygieia) wurde nach Hygieia, der Tochter des Heilgottes Asklepios aus der griechischen Mythologie, benannt. Mit einem Durchmesser von 409 km ist Hygiea der drittgrößte bekannte Asteroid im Hauptgürtel. Spektroskopische Untersuchungen ergaben, dass die chemische Zusammensetzung von Hygiea auffällige Übereinstimmungen mit den kohlenstoffhaltigen Meteoriten Warrenton und Ornans aufweist. Möglicherweise ist Hygiea der Ursprungskörper dieser Meteoriten.

Inhaltsverzeichnis


Siehe auch

Quellen

  1. ↑ S.R. Chesley et al.: The Mass of Asteroid 10 Hygiea. In: Bulletin of the American Astronomical Society. 37, Mai 2005, S. 524ff. ([1] ; Stand: 23.9.2007). 


Aspekte

Stationär, rückläufig Opposition Abstand zur Erde Maximale Helligkeit Stationär, prograde Zusammenhang zur Sonne
23. Mai 2006 12. Juli 2006 1,86527AE 9.2 mag 31. August 2006 22. Februar 2007
8. August 2007 4. Oktober 2007 2.36399AE 10.1 mag 23. November 2007 1. Mai 2008
9. Oktober 2008 3. Dezember 2008 2.51309AE 10.3 mag 26. Januar 2009 4. Juli 2009
16. Dezember 2009 6. Februar 2010 2.16963AE 9.8 mag 31. März 2010 24. September 2010

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