| Issue |
A&A
Volume 370, Number 2, May I 2001
|
|
|---|---|---|
| Page(s) | 602 - 609 | |
| Section | Celestial mechanics and astrometry | |
| DOI | https://doi.org/10.1051/0004-6361:20010222 | |
| Published online | 15 May 2001 | |
Mass and density of asteroids (4) Vesta and (11) Parthenope
Observatoire de Bordeaux, UMR 5804, CNRS, BP 89, 33270 Floirac, France
Corresponding author: M. Rapaport, rapaport@observ.u-bordeaux.fr
Received:
29
August
2000
Accepted:
7
February
2001
As mentioned in a previous paper (Viateau & Rapaport [CITE]), the orbit of asteroid (17) Thetis is strongly
perturbed by two large minor planets, (4) Vesta and (11) Parthenope.
These strong gravitational perturbations enabled us to determine both the
mass of Vesta and the mass of Parthenope. We also independently derived
the mass of Vesta from observations of (197) Arete. The weighted mean of the two results
gives the value 
(solar mass) for the mass of Vesta,
and its derived mean density is (
) g/cm3. For (11)
Parthenope, the values 
and 
g/cm3
were obtained, respectively for its mass and its mean density.
Key words: minor planets, asteroids / astrometry / ephe merides
© ESO, 2001
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