IRTF observations of the occultation of 28 SGR by Saturn

Details IRTF observations of the occultation of 28 SGR by Saturn IRTF observations of the occultation of 28 SGR by Saturn

Jun 1993

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993icar..103..235h&link_type=abstract

Icarus (ISSN 0019-1035), vol. 103, no. 2, p. 235-252.

Astronomy and Astrophysics

Astronomy

16

Infrared Astronomy, Optical Thickness, Saturn (Planet), Saturn Rings, Stellar Occultation, Infrared Imagery, Mathematical Models, Space Observations (From Earth), Stellar Magnitude, Saturn, Occultations, Earth-Based Observatons, Infrared, Wavelengths, Rings, Structure, Comparison, Spacecraft Observations, Voyager Missions, Diffraction, Mass, Pps Instrument, Optical Properties, Depth, Procedure, Morphology, Data, Features, Ringlets, Gaps

Scientific paper

NASA's Mauna Kea IR Telescope Facility obtained an IR-imaging time series for the July 3, 1989 occultation of 28 Sgr by Saturn and its rings; the stellar signal is present in these images throughout the ring occultation event. These data are noted to vary systematically with respect to the Voyager data over large radius scales, perhaps due to stellar signal diffraction through the rings. The stellar diameter, which is projected to be about 20 km, placed most bending- and density-wave trains below measurable resolution. Masses and mean optical depths are presented for individual ring sections.

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