Orbital elements of Nereid from new observations

Details Orbital elements of Nereid from new observations Orbital elements of Nereid from new observations

Aug 1982

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982a%26a...112..277v&link_type=abstract

Astronomy and Astrophysics, vol. 112, no. 2, Aug. 1982, p. 277-280.

Astronomy and Astrophysics

Astrophysics

18

Astrometry, Natural Satellites, Neptune (Planet), Nereid, Orbital Elements, Planetary Orbits, Astronomical Photography, Eccentric Orbits, Kepler Laws, Least Squares Method, Orbit Calculation, Orbit Perturbation, Planetary Mass

Scientific paper

An observing run on the Danish-ESO 1.5-m reflector in April 1981 provided good plates of Nereid, a faint satellite of Neptune. An accurate measurement of these plates (joined to two unanalyzed plates taken at McDonald Observatory) permitted to determine orbital elements of a Keplerian orbit as well as of a disturbed one from Mignard's (1975) theory. The mean elements of this disturbed orbit are given with osculating elements for 1981 January 1.0. The inferred mass of Neptune is found as 1/m = 19383 + or - 110, a value in good agreement with the mass determinations made with other techniques. Additional observations are planned in 1982. Potential observers are required in order to diversify the available data and to increase their number.

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