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Light pollution in Beijing and effects on Xinglong Station of National Astronomical Observatory

Published online by Cambridge University Press:  05 March 2015

Ligen Lu ,
Baozhou Zhang ,
Jian Liu  and
Shanshan Zeng
Ligen Lu
Affiliation:
Dept. of Astronomy, Beijing Normal University, 19 XinJieKouWai St., Beijing, China
Baozhou Zhang*
Affiliation:
Dept. of Astronomy, Beijing Normal University, 19 XinJieKouWai St., Beijing, China Beijing Key Laboratory of Applied Optics, 19 XinJieKouWai St., Beijing, China
Jian Liu
Affiliation:
Dept. of Physics, Beijing Normal University, 19 XinJieKouWai St., Beijing, China
Shanshan Zeng
Affiliation:
Dept. of Astronomy, Beijing Normal University, 19 XinJieKouWai St., Beijing, China
*
*email: [email protected]
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Abstract

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A night-sky luminance survey was carried on in Beijing to assess the level of light pollution. The luminance of the zenith night sky and skies in four directions at six sites with different distances from the city center was measured by using a photometric luminance meter. The Xinglong Station of National Astronomical Observatory was included to study the impacts of city lights on an astronomical observatory. The survey shows that the night-sky luminance decreases with increasing distance from the city center. Measurement results indicate that outdoor lighting in the Xinglong county town which is close to the observatory has non-negligible influence on the night sky at Xinglong Station.

Keywords

night-sky luminanceastronomical observatoryoutdoor lightinglight pollution
Type
Contributed Papers
Information
Proceedings of the International Astronomical Union , Volume 10 , Highlights H16: Highlights of Astronomy , August 2012 , pp. 749
Copyright
Copyright © International Astronomical Union 2015