An estimation of the mass of asteroid 20-Massalia derived from the HIPPARCOS minor planets data

Details An estimation of the mass of asteroid 20-Massalia derived from the HIPPARCOS minor planets data An estimation of the mass of asteroid 20-Massalia derived from the HIPPARCOS minor planets data

Dec 1998

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998a%26a...340l...1b&link_type=abstract

Astronomy and Astrophysics, v.340, p.L1-L4 (1998)

Astronomy and Astrophysics

Astrophysics

13

Hipparcos, Asteroids, Astrometry

Scientific paper

The ESA astrometry satellite Hipparcos has observed a set of 48 minor planets between 1989 and 1993. A close encounter between 20-Massalia and 44-Nysa, both planets observed by Hipparcos, enabled us to obtain a value for the mass of 20-Massalia. Due to another close approach with the large asteroid 4-Vesta, the value we obtained (2.42 +/- 0.41 10(-12) Msun) is closely dependent on the value assigned to the mass of Vesta. Based on data from the Hipparcos astrometry satellite.

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