IRAS Survey-Mode Observations of Pluto-Charon

Details IRAS Survey-Mode Observations of Pluto-Charon IRAS Survey-Mode Observations of Pluto-Charon

Nov 1999

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1999icar..142..155s&link_type=abstract

Icarus, Volume 142, Issue Icarus, pp. 155-159.

Astronomy and Astrophysics

Astronomy

2

Scientific paper

Radiometric observations of Pluto and its moon, Charon, by the Infrared Astronomical Satellite (IRAS) in 1983 marked the first detection of the system at thermal wavelengths. Reexamination of the IRAS observations prove that Pluto-Charon was detected several times during the all-sky survey in addition to the pointed observations that targeted the system. Pluto-Charon exhibits thermal lightcurve variations that can be explained by the known variation in hemispherically averaged geometric albedo with sub-Earth longitude. Changes in albedo, however, are not sufficient to explain the lower than expected fluxes observed at microwave wavelengths.

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