Physics
Scientific paper
Feb 1987
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1987icar...69..230o&link_type=abstract
Icarus (ISSN 0019-1035), vol. 69, Feb. 1987, p. 230-238.
Physics
6
Brightness Temperature, Emission Spectra, Infrared Radiometers, Neptune Atmosphere, Uranus Atmosphere, Infrared Filters, Infrared Telescopes, Space Infrared Telescope Facility, Planets, Giant Planets, Infrared, Wavelengths, Radiometry, Temperature, Uranus, Neptune, Earth-Based Observations, Telescope Methods, Brightness, Equipment, Procedure, Transmissions, Spectra, Structure, Jupiter, Satellites, Callisto, Ganymede
Scientific paper
Radiometric measurements of Uranus and Neptune near 21 and 32 μm have been made with filters with widths of 8 and 5 μm, respectively. The observations at 21 μm, made on 1985 June 19 at the NASA Infrared telescope facility at Mauna Kea, Hawaii, corresponded to brightness temperatures of 54.1±0.3K for Uranus and 58.1±0.3K for Neptune. The observations at 32 μm were made on three nights: 1983 May 1 and 1984 May 30 and 31, also at the NASA IRTF. These measurements corresponded to brightness temperatures of 51.8±1.5K for Uranus and 55.6±1.2K for Neptune. The observations are consistent with higher-resolution studies and confirm the general decrease of brightness temperatures going from about 20 to 30 μm.
Baines Kevin Hays
Bergstralh Jay T.
Brown Harvey R.
Caldwell J. Jr. J.
Orton Glenn S.
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