Sky Brightness at Weihai Observatory of Shandong University
Sky Brightness at Weihai Observatory of Shandong University
复制标题
山东大学威海天文台天空亮度
DOI:
10.1086/676819
复制
发表时间:
2014-05
影响因子:
3.5
通讯作者:
Du Jun-Ju
中科院分区:
文献类型:
--
作者:
Guo Di-Fu;Hu Shao-Ming;Chen Xu;Gao Dong-Yang;Du Jun-Ju
In this paper, a total of about 28000 images in V and R band obtained over 161 nights using the one-meter optical telescope at Weihai Observatory (WHO) of Shandong University from 2008 to 2012 have been processed to measure the sky brightness. They provide us with an unprecedented database, which can be used to study the variation of the sky brightness with the sky position, the moonlight contribution, and the twilight sky brightness. The darkest sky brightness is about 19.0 and 18.6 mag arcsec-2 in V and R band, respectively. An obvious darkening trend is found at the first half of the night at WHO, and the variation rate is much larger in summer than in other seasons. The sky brightness variation depends more on the azimuth than on the altitude of the telescope pointing for WHO. Our results indicate that the sky brightness at WHO is seriously influenced by urban light.
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