Light Pollution At High Zenith Angles, As Measured at Cerro Tololo Inter-American Observatory1 1 Based in part on observations taken at the Cerro Tololo Inter-American Observatory, National Optical Astronomy Observatory, which is operated by the Association of Universities for Research in Astronomy, Inc. (AURA) under cooperative agreement with the National Science Foundation.
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On the basis of measurements of the V -band sky brightness obtained at Cerro Tololo Inter-American Observatory in 2006 December and 2008 December we confirm the functional form of the basic model of Garstang. At high zenith angles we measure an enhancement of a factor of 2 over Garstang's later model when there is no marine cloud layer over La Serena/Coquimbo. No corresponding enhancement is found in the B band. 2010. The Astronomical Society of the Pacific.
