Spectral and total emittance of Apollo fines

Details Spectral and total emittance of Apollo fines Spectral and total emittance of Apollo fines

May 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975thph.confq....b&link_type=abstract

American Institute of Aeronautics and Astronautics, Thermophysics Conference, 10th, Denver, Colo., May 27-29, 1975, 5 p.

Physics

Apollo Flights, Infrared Spectra, Lunar Dust, Lunar Temperature, Spectral Emission, Fines, Lunar Surface, Surface Temperature, Thermal Mapping

Scientific paper

Spectral and total emittance results for fines from Apollo Missions 12, 14, 15, 16, and 17 are presented. The total emittance is presented as a function of surface temperature and density. For the lowest expected lunar temperature the total emittance is approximately 0.975, and for the highest expected lunar temperature the total emittance is approximately 0.91. These values, of course, depend upon a given sample. The spectral emittance is presented for a wavelength range from 2 to 14.5 microns. All samples have two common features: a maximum emittance of one between 8-9 microns, and a minimum emittance between 3-4 microns.

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