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Observing Conditions from 1988 to 1999 at Huairou Solar Observing Station

Published online by Cambridge University Press:  13 May 2016

Yuanyong Deng  and
Yihua Yan
Yuanyong Deng
Affiliation:
Beijing Astronomical Observatory, CAS, Beijing 100012, China National Astronomical Observatories, CAS, Beijing 100012, China
Yihua Yan
Affiliation:
Beijing Astronomical Observatory, CAS, Beijing 100012, China National Astronomical Observatories, CAS, Beijing 100012, China CAS-Peking University joint Beijing Astrophysics Center, Beijing 100871, China

Abstract

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This paper summarizes the change of astronomical observing conditions since 1986 at Huairou Solar Observing Station. Our results from 1988 to 1999 are as follows: quantitatively, stray light has increased and visibility has decreased; qualitatively, the seeing condition has become worse.

Type
Part 2. Threats to Optical Astronomy
Information
Symposium - International Astronomical Union , Volume 196: Preserving the Astronomical Sky , 2001 , pp. 138 - 141
Copyright
Copyright © Astronomical Society of the Pacific 2001