Astronomy and Astrophysics – Astronomy
Scientific paper
Mar 1993
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1993icar..102..134y&link_type=abstract
Icarus (ISSN 0019-1035), vol. 102, no. 1, p. 134-149.
Astronomy and Astrophysics
Astronomy
27
Brightness Distribution, Least Squares Method, Light Curve, Planetary Mapping, Planetary Surfaces, Pluto (Planet), Astronomical Models, Charon, Polynomials, Reflectance, Spherical Harmonics, Transit Satellites, Pluto, Mapping, Models, Lightcurve, Photometry, Reflectance, Harmonics, Earth-Based Observations, Techniques, Procedure, Surface, Brightness, Optical Properties, Features, Calculations, Parameters
Scientific paper
Observations of Charon transits are used here to derive preliminary maps of Pluto's sub-Charon hemisphere. Three models are used to describe the brightness of Pluto's surface as functions of latitude and longitude. Mapping results are presented using spherical harmonic functions, polynomial functions, and finite elements. A smoothing algorithm applied to the maps is described and the validity and resolution of the maps is tested by reconstruction from synthetic data. A preliminary finding from the maps is that the south polar region has the highest albedo of any location on the planet.
Binzel Richard P.
Young Eliot Fisher
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