Far-infrared photometry of planets - Saturn and Venus

Details Far-infrared photometry of planets - Saturn and Venus Far-infrared photometry of planets - Saturn and Venus

Jun 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979icar...38..411c&link_type=abstract

Icarus, vol. 38, June 1979, p. 411-419.

Physics

6

Far Infrared Radiation, Infrared Photometry, Infrared Spectroscopy, Planetary Radiation, Saturn (Planet), Venus (Planet), Brightness Temperature, Radiant Flux Density, Saturn Rings, Space Exploration, Spectral Bands, Infrared, Photometry, Saturn, Venus, Observations, Wavelengths, Brightness, Temperatures, Emissions, Spectral Bands, Mars, Rings, Models, Thermal Structure

Scientific paper

Far-infrared observations of Saturn and Venus made within four spectral bands (31 to 38, 47 to 67, 71 to 94, and 114 to 196 micron) using a 32-cm airborne telescope during May 1977 are presented. The set of brightness temperatures obtained from Saturn is analyzed on the basis of thermal models of the atmosphere of this planet. The best agreement is obtained with an effective temperature of about 95 K for the planet itself and a ring contribution corresponding to brightness temperatures ranging from 55 to 70 K. These values of the temperature of the ring system are smaller than the ones measured at shorter wavelengths and could be indicative of a decreasing emissivity of the rings in the far infrared.

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