Other
Scientific paper
Feb 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983icar...53..341t&link_type=abstract
(Saturn Conference, Tucson, AZ, May 11-15, 1982.) Icarus, vol. 53, Feb. 1983, p. 341-347.
Other
43
Astronomical Photometry, Hyperion, Iapetus, Phoebe, Spectrophotometry, Absorption Spectra, Albedo, Asteroids, Magnitude, Spectral Reflectance, Saturn, Satellites, Hyperion, Iapetus, Phobe, Colors, Observations, Magnitude, Diameters, Albedos, Spectra, Comparisons, Absorption, Interactions, Optical Properties, Asymmetry, Wavelengths, Voyager, Spectrophotometry
Scientific paper
The Phoebe, Hyperion and Iapetus Saturn satellites are discussed in light of eight-color spectrophotometry, which together with observed V magnitudes and Voyager spacecraft-derived diameters yields geometric albedos of 0.07 for Iapetus, 0.06 for Phoebe, and maximum- and minimum-dimension based limits of 0.19 and 0.25 respectively for Hyperion. While both Hyperion and Iapetus have similar, very reddish spectra, it is noted that Hyperion has a much higher albedo than the dark side of Iapetus. The mean spectrum of Phoebe is much flatter, with a broad absorption feature near 1 micron. The determination of these optical differences between the surface materials of Phoebe and the dark side of Iapetus constrains the possible interaction modes between Phoebe and the other two satellites.
Tholen David J.
Zellner Ben
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