The Sun among stars .IV. Albedos of Uranus and Neptune and the solar color.
Abstract
Geometric albedos in 48 adjacent 50 A bands from 3250 to 5600 A have been derived from observations of Uranus and Neptune. The solar analog found in earlier papers (Hardorp 1978, 1980) was chosen for these reductions, so these albedos are more reliable systematically than earlier ones and allow a choice among the scattering models of Savage et al. (1980). Green methane bands are stronger on Neptune. Strong solar absorption lines are found to be partially filled in by Raman-scattering. Neglect of this effect caused Croft et al. (1972) to find a solar color that is too blue. It probably also affected the classification of G-type stars in the Michigan Spectral Catalogue as well as Garrison's (1979) interpretation of IUE observations.
- Publication:
-
Astronomy and Astrophysics
- Pub Date:
- March 1981
- Bibcode:
- 1981A&A....96..123H
- Keywords:
-
- Albedo;
- Astronomical Spectroscopy;
- G Stars;
- Neptune (Planet);
- Raman Spectra;
- Solar Spectra;
- Uranus (Planet);
- Absorption Spectra;
- Neptune Atmosphere;
- Spectral Line Width;
- Uranus Atmosphere;
- Astronomy