Astronomy and Astrophysics – Astronomy
Scientific paper
Jun 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...230l.117w&link_type=abstract
Astrophysical Journal, Part 2 - Letters to the Editor, vol. 230, June 1, 1979, p. L117-L121. Research supported by the Smithsoni
Astronomy and Astrophysics
Astronomy
13
Astrometry, Orbit Perturbation, Planetary Rotation, Venus (Planet), Oblate Spheroids, Radar Astronomy, Solar System, Tides, Venus, Rotation, Position (Location), Spin, Obliquity, Radar, Data, Coupling, Viscosity
Scientific paper
Possible orientations of the Venus rotation pole as a function of planetary oblateness are calculated, taking into account the variation of the orbital inclination and motion of the nodal line produced by long-term planetary perturbations and assuming the obliquity to be fully damped. If the obliquity is stabilized against solar tides by core-mantle viscous coupling, a fully damped obliquity is the expected state. An analysis of earth-based radar data from 1964 to 1977 yields a pole position which lies near damped pole positions of small oblateness, no more than about 10 to the 6th. Possible implications of this result are considered.
de Campli W. M.
Ward William R.
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