Physics
Scientific paper
May 1984
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1984icar...58..312t&link_type=abstract
(IAU, COSPAR, NASA, et al., Colloquium on Natural Satellites, 77th, Cornell University, Ithaca, NY, July 5-9, 1983) Icarus (ISSN
Physics
62
Annual Variations, Methane, Polar Caps, Satellite Atmospheres, Satellite Surfaces, Triton, Abundance, Albedo, Insolation, Sublimation, Surface Temperature, Neptune, Satellites, Seasonal Variations, Atmosphere, Comparisons, Pluto, Physics, Obliquity, Inclination, Orbits, Saturation, Latitudes, Mass, Temperature, Surface, Volatiles, Precession, Ice, Liquids, Abundance, Polar Regions, Insolation, Sublimation, Diagrams, Density, Albedo, Radius, Calculations, Flux
Scientific paper
Triton's seasons differ materially from those of Pluto owing to four important differences in the governing physics: First, the obliquity of Triton is significantly less than Pluto's obliquity. Second, Triton's inclined orbit precesses rapidly about Neptune so that a complicated seasonal variation in the latitude of the Sun occurs for Triton. Third, Neptune's orbit is much more circular than Pluto's orbit so that the sunlight intercepted by Triton's disk does not vary seasonally. Finally, Triton's atmosphere cannot be saturated at the lower latitudes so that the mass of the atmosphere is controlled by the temperature of the high-latitude ices of liquids (polar caps), as for CO2 on Mars. The consequences of Triton's entire surface being covered with volatile substances have been examined.
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