Astronomy and Astrophysics – Astronomy
Scientific paper
Dec 1988
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1988p%26ss...36.1381s&link_type=abstract
Planetary and Space Science (ISSN 0032-0633), vol. 36, Dec. 1988, p. 1381-1383, 1385-1389.
Astronomy and Astrophysics
Astronomy
4
Astronomical Photography, Planetology, Saturn Atmosphere, Saturn Rings, Northern Hemisphere, Ultraviolet Astronomy, Visible Spectrum, Voyager Project
Scientific paper
A photographic survey in four spectral regions (UV, blue, visible and red) of the northern hemisphere of Saturn's atmosphere, has been carried out between 1980 (epoch of the edgewise apparition of the rings) and 1987 (ring's maximum aperture), with the aim of analyzing the changes in the cloud morphology and reflectivity with respect to the spacecraft aspects in 1979 (Pioneer 11) and 1980-1981 (Voyager 1 and 2). Very few variations were detected in the meridional position of the belts and zones. Only a shift of about 4000 km toward the north appeared to occur in 1984 in UV light to the region at latitude 46 deg N. Other belts and zones remained stable to ground-based telescopic resolution during the whole period.
Quesada J. A.
Sanchez-Lavega Agustín.
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