IRAS constraints on the sizes of Pluto and Charon

Details IRAS constraints on the sizes of Pluto and Charon IRAS constraints on the sizes of Pluto and Charon

May 1987

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987natur.327..127t&link_type=abstract

Nature (ISSN 0028-0836), vol. 327, May 14, 1987, p. 127-129. NASA-supported research.

Astronomy and Astrophysics

Astronomy

22

Charon, Infrared Astronomy Satellite, Pluto (Planet), Size Determination, Astronomical Models, Planetary Structure, Thermal Radiation, Pluto, Satellites, Charon, Physical Properties, Satellite Observations, Size, Eclipses, Iras Satellite, Thermal Properties, Emissions, Models, Infrared, Radiation, Wavelengths, Diameter, Parameters, Interferometry, Earth-Based Observations, Atmosphere, Analysis

Scientific paper

Recent mutual eclipse events have begun to yield information on the sizes of Pluto and Charon. Their detection by the Infrared Astronomical Satellite (IRAS) during its sky survey has provided an important additional constraint. The authors report how models of their thermal emission indicate that Charon contributes a significant amount of the observed infrared radiation. The most probable diameters for Pluto and Charon are 2,200 and 1,300 (±150) km. These results are consistent with there being some atmosphere on Pluto.

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