The satellite of Pluto. III

Details The satellite of Pluto. III The satellite of Pluto. III

Mar 1981

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1981aj.....86..442h&link_type=abstract

Astronomical Journal, vol. 86, Mar. 1981, p. 442, 443.

Astronomy and Astrophysics

Astronomy

27

Charon, Natural Satellites, Satellite Orbits, Circular Orbits, Orbit Calculation, Orbital Elements, Pluto (Planet), Speckle Patterns, Pluto, Satellites, Observations, 1978P1, Speckle Techniques, Orbits, Radius, Mass, Properties, Characteristics, Interferometry

Scientific paper

Speckle observations of the satellite of Pluto are used to determine the orbital radius and mass of the Pluto-satellite system. Resolved images of the planet and its satellite were obtained by the speckle interferometer on the 3.6-m Mauna Kea reflector. From position angles obtained from elongated images taken over the last 15 years, two speckle measures and the separation obtained with the USNO electrographic cameras, a circular satellite orbit with a radius of 19,700 + or - 300 km is obtained, with a period of 6.3871 + or - 0.0002 days, inclination of 94 + or - 3 deg, node on the equator of 221 + or - 3 deg and true anomaly on January 31, 1982 of 75 + or - 8 deg. Results lead to an inverse mass of the system of 1.34 + or - 0.07 x 10 to the 8th.

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