Astronomy and Astrophysics – Astronomy
Scientific paper
Feb 1992
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992em%26p...56..123s&link_type=abstract
Earth, Moon, and Planets (ISSN 0167-9295), vol. 56, no. 2, Feb. 1992, p. 123-139. Research supported by University of Western On
Astronomy and Astrophysics
Astronomy
11
Amalthea, Astronomical Models, Computer Aided Mapping, Planetary Mapping, Relief Maps, Satellite Surfaces, Tables (Data), Terminator Lines, Topography, Voyager 1 Spacecraft, Voyager 2 Spacecraft
Scientific paper
A topographic model of Amalthea (JV) was derived from the shapes of limbs and terminators in Voyager images, modified locally to accommodate large craters and ridges. The model is presented in tabular and graphic form, including the first detailed shaded relief maps of the satellite. The shape is very irregular, with radii varying between about 53 and 151 +/- 5 km. The minimum value occurs in a deep crater at the south pole. The volume is estimated to be 2.5 +/- 0.5 x 10 exp 6 cu km. A prominent groove or valley extends some 150 km across the trailing side. High albedo, spectrally distinct markings are mapped and found to have a less obvious relationship with relief than previously suggested.
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