Definitive orbit of minor planet (29) Amphitrite from 91 oppositions 1825‐‐1985 and a new determination of the mass of Jupiter | Zendy

Schmadel L. D. | Zendy

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Definitive orbit of minor planet (29) Amphitrite from 91 oppositions 1825‐‐1985 and a new determination of the mass of Jupiter

Author(s) -

Schmadel L. D.

Publication year - 1986

Publication title -

astronomische nachrichten

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.394

H-Index - 63

eISSN - 1521-3994

pISSN - 0004-6337

DOI - 10.1002/asna.2113070604

Subject(s) - jupiter (rocket family) , asteroid , physics , astrometry , astronomy , solar system , spacecraft , astrobiology , centaur , orbit (dynamics) , minor planet , planet , satellite , ephemeris , aerospace engineering , stars , engineering

Minor planet (29) Amphitrite will serve as a target for the first asteroid flyby with NASA spacecraft Galileo on December 6, 1986. It also represents a first priority object for solar system observations with the ESA astrometry satellite Hipparcos which is scheduled to be launched in 1988. In order to meet the high astrometric accuracy requirements, a definitive orbit based on 1,577 observations from 91 apparitions covering the time span 1825 to 1985 is evaluated. (29) Amphitrite moves near to the 3:1 resonance to Jupiter and seems particularly suited for a new determination of the mass of the Jupiter system. A most probable mass value of 1/(1047.369±0.029) solar masses is obtained and the relaibility of this result is discussed.

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