The surface and atmosphere of Pluto

Details The surface and atmosphere of Pluto The surface and atmosphere of Pluto

Jan 1980

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1980icar...41...96c&link_type=abstract

Icarus, vol. 41, Jan. 1980, p. 96-102.

Astronomy and Astrophysics

Astronomy

11

Planetary Atmospheres, Planetary Composition, Planetary Surfaces, Pluto (Planet), Absorption Spectra, Albedo, Astronomical Spectroscopy, Methane, Spectral Reflectance, Pluto, Surface, Atmosphere, Spectrum, Methane, Vapor Pressure, Albedo, Mass, Density, Radius, Data, Spectrophotometry, Frost, Temperatures, Perihelion, Aphelion, Absorption, Gases, Orbits, Reflectivity, Condensation, Eccentricity

Scientific paper

A new spectrum of Pluto in the region 1.4 to 1.9 microns provides confirmation of the presence of solid methane on the planet's surface. Considerations of the vapor pressure of methane gas above the solid indicate the presence of a tenuous atmosphere of this gas, the surface partial pressure of which is variable from perihelion to aphelion. The implication of a high surface albedo, the newly derived mass of Pluto, and inferences as to the range of plausible bulk mean densities indicate that the radius of Pluto should lie in the range 1200 to 1800 km.

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