Encyclopedia of Astrobiology

Living Edition
| Editors: Muriel Gargaud, William M. Irvine, Ricardo Amils, Henderson James Cleaves, Daniele Pinti, José Cernicharo Quintanilla, Michel Viso

6 Hebe

  • Philipp GastEmail author
Living reference work entry
DOI: https://doi.org/10.1007/978-3-642-27833-4_5209-2


Hebben near-Earth Region Semimajor Axis Atypical Member Main Belt 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



6 Hebe is a large asteroid residing in the inner main belt with a semimajor axis of approximately 2.425 AU. Its orbit is inclined by about 14.748 degree and has an eccentricity of 0.201. With these orbital parameters, it is situated near the 3:1 resonance with Jupiter and the v6 secular resonance. This proximity makes it likely for ejecta of Hebe, which can be caused by impacts of smaller asteroids, to come into near-earth regions by mediation of Jupiter or Saturn. Hebe is therefore suggested to be one of the main contributors for the terrestrial meteoroid flux of H chondrites and the IIE iron meteorites.

With its diameter of 185.18 km and a mass between 1.2 and 1.4 × 10^19 kg, it has a similar average density as Mars even though it is much smaller. Hebe has been classified to be of spectral class S(IV), of which it is a relatively atypical member because of its low spectral slope and UV color.


Hebe was discovered in 1847 by Karl Ludwig Hencke in Driesen (Germany) as the sixth asteroid ever to be found.

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© Springer-Verlag Berlin Heidelberg 2014

Authors and Affiliations

  1. 1.Asteroids and Comets, Institute of Planetary ResearchGerman Aerospace CenterBerlinGermany