The albedo, effective temperature, and energy balance of Neptune, as determined from Voyager data

Details The albedo, effective temperature, and energy balance of Neptune, as determined from Voyager data The albedo, effective temperature, and energy balance of Neptune, as determined from Voyager data

Oct 1991

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1991jgr....9618921p&link_type=abstract

Journal of Geophysical Research Supplement (ISSN 0148-0227), vol. 96, Oct. 30, 1991, p. 18,921-18,930.

Physics

35

Albedo, Energy Budgets, Neptune Atmosphere, Planetary Temperature, Voyager 2 Spacecraft, Infrared Radiometers, Infrared Spectrometers, Spectrophotometry

Scientific paper

Data from the Voyager infrared spectrometer and radiometer (IRIS) investigation are used in determining the albedo, effective temperature, and energy balance of Neptune. From broadband radiometric observations made at phase angles of 14 deg and 134 deg, together with measurements at intermediate phase angles from the literature, an orbital mean value of 0.290 +/-0.067 is obtained for the bolometric Bond albedo. This yields an equilibrium temperature Teq = 46.6 +/-1.1 K. From thermal spectra obtained over latitudes from pole to pole an effective temperature Teff = 59.3 +/-0.8 K is derived. This represents a substantial improvement over previously determined values. The energy balance of Neptune is therefore E = 2.61 +/-0.28, which is in agreement with previous results. The reduced uncertainty in this value is due to the improved determination of the effective temperature.

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