Astronomy and Astrophysics – Astrophysics
Scientific paper
Apr 1979
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979apj...229l.109l&link_type=abstract
Astrophysical Journal, Part 2 - Letters to the Editor, vol. 229, Apr. 15, 1979, p. L109-L111.
Astronomy and Astrophysics
Astrophysics
5
Astronomical Photometry, Brightness, Saturn Rings, Angular Distribution, Azimuth, Colorimetry, Statistical Analysis, Saturn, Brightness, Rings, Earth, Opposition, Observations, Phase Angles, Wavelengths, Azimuth, Thickness, Asymmetry
Scientific paper
The brightness variation in Saturn's ring A with orbital phase of the ring particles does not change significantly as the declination of the earth, B, decreases from about 16.5 to 11.5 deg and is noticeably more pronounced than when the rings are fully open. The present data are also not inconsistent with earlier results suggesting that the amplitude of this azimuthal effect diminishes near opposition.
Irvine William M.
Lumme Kari
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