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MODEL FOR ARTIFICIAL NIGHT-SKY ILLUMINATION
R. H. GARSTANG
Publications of the Astronomical Society of the Pacific
Vol. 98, No. 601 (March 1986), pp. 364-375
Published by: Astronomical Society of the Pacific
Stable URL: http://www.jstor.org/stable/40678683
Page Count: 12
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A model has been constructed to allow calculation of the night-sky brightness caused by a city at its center and outside the city, and at arbitrary zenith distances. A circular city of uniform brightness is assumed, with the total brightness proportional to the population. Molecular scattering and aerosol scattering are included, with the amount of aerosols being an adjustable parameter, and different scale heights being adopted for molecules and aerosols. The reflectivity of the ground and the fraction of light radiated above the horizontal are taken as parameters. Applications are given to several cities, to the general population-distance relations, to brightness-distance relations, and to the city center brightness-population relations.
Publications of the Astronomical Society of the Pacific © 1986 The University of Chicago Press