The diameter and reflectance of Triton

Details The diameter and reflectance of Triton The diameter and reflectance of Triton

Oct 1979

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1979icar...40..104c&link_type=abstract

Icarus, vol. 40, Oct. 1979, p. 104-114.

Statistics

Computation

15

Albedo, Diameters, Natural Satellites, Neptune (Planet), Surface Properties, Chemical Composition, Optical Thickness, Radii, Reflectance

Scientific paper

The surface reflectance, radius and geometric albedo of Triton are investigated. Image tube spectra of the reflectance of the satellite between 3200 and 7400 A are presented which indicate that the surface is composed mainly of rocky (non-icy) material, with violet absorption suggesting a composition similar to that of lunar fines, terrestrial igneous rocks and chondrites. Photometric/radiometric calculations based on measurements of the 20-micron thermal flux and the known visual magnitude of Triton reveal an upper limit of 5280 km to its diameter, and a lower limit of 0.19 to its geometric albedo. Computations of Rayleigh scattering in a potential inert atmospheric component are also presented which appear to preclude the presence of large quantities of nitrogen and noble gases on Triton.

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