Astronomy and Astrophysics – Astronomy
Scientific paper
May 1975
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975icar...25..136p&link_type=abstract
Icarus, vol. 25, May 1975, p. 136-145.
Astronomy and Astrophysics
Astronomy
4
Light Scattering, Planetary Surfaces, Saturn Rings, Solar Radiation, Albedo, Angular Distribution, Astronomical Photometry, Azimuth, Illumination
Scientific paper
Indirect solar illumination of Saturn's ring via scattering from the ball of the planet provides a new ground-based observational technique for studying the single scattering albedo and phase function of the individual particles. Information concerning optical thickness may also be obtained. Essentially complete phase angle coverage can be achieved by studying the variation with azimuth of the indirect contribution to the surface brightness of the ring. Initial application of the technique is reported. The indirect contribution to the radiation scattered from the ring has been marginally detected by electronographic areal photometry. The results have been interpreted using simple scattering models. The photometric accuracy was insufficient to permit investigation of departures from isotropic scattering. But high single scattering albedos, and an essentially opaque ring, are indicated.
Baker Andrew
Price Michael J.
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