The albedos of Pluto and Charon - Wavelength dependence

Details The albedos of Pluto and Charon - Wavelength dependence The albedos of Pluto and Charon - Wavelength dependence

Apr 1992

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1992aj....103.1389m&link_type=abstract

Astronomical Journal (ISSN 0004-6256), vol. 103, April 1992, p. 1389-1394. Research supported by NSF.

Statistics

Computation

6

Albedo, Charon, Planetary Radiation, Pluto (Planet), Computational Astrophysics, Light Curve, Telescopes

Scientific paper

The March 3, 1987 occultation of Charon by Pluto was monitored simultaneously with three telescopes. Each site covered a distinct wavelength interval with the total range spanning 0.44-2.4 microns. Observing the same event ensures an identical sun-Pluto-earth geometry for all three sites, and minimizes the assumptions which must be made to combine results. This spectrophotometry is used to derive the individual geometric albedos of Pluto and Charon over a factor of at least 5 in wavelength. Combining the results with those of Binzel (1988) improved (B - V) color estimates (on the 'Johnson Pluto' system) are obtained for the components of the system at rotational phase 0.75: (Pluto + Charon) = 0.843 +/- 0.006; Pluto alone = 0.866 +/- 0.007; and Charon alone = 0.702 +/- 0.010.

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