New determination of the mass of Pallas

Until very recently, the mass of minor planet 2 Pallas had been determined from its gravitational effects on only 1 Ceres and the planet Mars. An independent confirmation was therefore highly desirable. This paper presents individual mass determinations based on close encounters with 16 other minor...

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Bibliographic Details
Published in:Astronomy and astrophysics (Berlin) 2001-01, Vol.365 (3), p.627-630
Main Author: Goffin, E.
Format: Article
Language:English
Subjects:
asteroids
astrometry
minor planets
planets and satellites: individual: 2 Pallas
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Summary:Until very recently, the mass of minor planet 2 Pallas had been determined from its gravitational effects on only 1 Ceres and the planet Mars. An independent confirmation was therefore highly desirable. This paper presents individual mass determinations based on close encounters with 16 other minor planets, as well as a simultaneous solution using all objects. The resulting value for the mass of Pallas, $(1.17 \pm 0.03) 10^{-10} M_{\odot}$, essentially confirms the result from Ceres alone.
ISSN:0004-6361
1432-0746
DOI:10.1051/0004-6361:20000023