Astronomy and Astrophysics – Astronomy
Scientific paper
Aug 1977
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1977pazh....3..368k&link_type=abstract
Pis'ma v Astronomicheskii Zhurnal, vol. 3, Aug. 1977, p. 368-372. In Russian.
Astronomy and Astrophysics
Astronomy
Albedo, Infrared Radiation, Planetary Radiation, Satellite Observation, Venus (Planet), Diurnal Variations, Infrared Radiometers, Limb Darkening, Planetary Temperature, Venera Satellites
Scientific paper
Radiometric observations of Venus by the Venera 9 and 10 space probes are analyzed which cover the latitude zone from -40 to +50 deg and the spectral range containing the 7.4 - 13.3-micron and 17.7 - 30-micron bands. The limb-darkening law for the Venusian thermal radiation is examined along with the day-night asymmetry of the radiation. A brightness temperature of 240.3 K is determined for the planet as a whole, and a radiometric albedo of 0.79 (+0.02, -0.01) is obtained.
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