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A new radar determination of the spin vector of VenusTwo 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.
Document ID
19800064821
Acquisition Source
Legacy CDMS
Document Type
Reprint (Version printed in journal)
External Source(s)
doi:10.1086/112775
Authors
Zohar, S. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Goldstein, R. M. (Jet Propulsion Lab., California Inst. of Tech. Pasadena, CA, United States)
Rumsey, H. C. (California Institute of Technology, Jet Propulsion Laboratory, Pasadena Calif., United States)
Date Acquired
August 10, 2013
Publication Date
August 1, 1980
Publication Information
Publication: Astronomical Journal
Volume: 85
Subject Category
Lunar And Planetary Exploration
Accession Number
80A48991
Funding Number(s)
CONTRACT_GRANT: NAS7-100
Distribution Limits
Public
Copyright
Other

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