Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1983
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1983apj...266..402l&link_type=abstract
Astrophysical Journal, Part 1, vol. 266, Mar. 1, 1983, p. 402-414.
Astronomy and Astrophysics
Astrophysics
28
Albedo, Astronomical Photometry, Energy Budgets, Spectral Resolution, Spectrophotometry, Uranus (Planet), Brightness, Infrared Spectra, Planetology, Solar Flux, Spectrum Analysis, Visible Spectrum, Uranus, Albedo, Spectrophotometry, Observations, Comparisons, Procedure, Brightness, Color, Heat, Source, Interior, Energy, Data, Flux, Models, Wavelengths, Spectra, Geometry, Calculations, Analysis
Scientific paper
New absolute spectrophotometry of Uranus between 3295 A and 7676 A obtained at spectral resolutions of 4 A and 8 A during its 1981 apparition is reported and compared with previous observations by Younkin (1970) recorded during the 1961-1963 apparitions. Geometric albedos are calculated, and Bond albedos are estimated for both sets of data. An increase in brightness of about 14% and a color change occurred during the interval between the epochs of observation, consistent with the high north-polar haze reported by Price and Franz (1979) and the change in aspect of the planet. An upper limit to the internal heat source is estimated from energy balance considerations.
Lockwood Wesley G.
Lutz Barry L.
Thompson Don T.
Warnock A.
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