A new radar determination of the spin vector of Venus

Details A new radar determination of the spin vector of Venus A new radar determination of the spin vector of Venus

Aug 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980aj.....85.1103z&link_type=abstract

Astronomical Journal, vol. 85, Aug. 1980, p. 1103-1111.

Astronomy and Astrophysics

Astronomy

1

Planetary Rotation, Radar Astronomy, Spin Dynamics, Vectors (Mathematics), Venus Radar Echoes, Error Analysis, Radar Measurement, Random Errors, Resonance, Solar Orbits

Scientific paper

Two radar observations of a set of three relatively small features on the surface of Venus have facilitated a refined determination of the spin vector of Venus. The period is found to be 243.019 + or 0.014 days, while the obliquity is 177.22 + or - 0.18 deg. The effects of deviations from exact sphericity on the interpretation of the measurements are discussed at length and the question of resonance with earth is reexamined.

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