| 上海天文台佘山工作站夜天亮度的变化 |
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| 引用本文： | 姚保安,毛亚庆.上海天文台佘山工作站夜天亮度的变化[J].中国科学院上海天文台年刊,2007(1):17-22. |
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| 作者姓名： | 姚保安 毛亚庆 |
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| 作者单位： | 中国科学院上海天文台,上海200030 |
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| 基金项目： | Acknowledgments： We thank Dr. John Dawe to provide the Fig. 7. |
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| 摘 要： | 使用1994—2007年在1．56m反射望远镜CCD照相机拍摄的资料，测定了上海天文台余山工作站夜天亮度的变化。由于上海城市的发展，佘山工作站的夜天亮度在V波段从每平方角秒约19mag变到15．8mag，也就是说，夜天亮度自1994年以来变亮了约20倍。国际上优良台站的夜天亮度在V波段等于或暗于21．5mag。上述夜天亮度是优良台站的200多倍。现在在佘山工作站使用1．56m反射望远镜对暗于V=14mag的星做精确测光已经很困难了。
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| 关 键 词： | 夜天亮度 佘山工作站 CCD照相机 |
| 修稿时间： | 2007-07-20 |
VARIATION OF THE NIGHT SKY BRIGHTNESS AT ZO- SE STATION OF SHANGHAI ASTRONOMICAL OBSERVATORY |
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| YAO Bao-an ,MAO Ya-qing.VARIATION OF THE NIGHT SKY BRIGHTNESS AT ZO- SE STATION OF SHANGHAI ASTRONOMICAL OBSERVATORY[J].Annals of Shanghai Observatory Academia Sinica,2007(1):17-22. |
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| Authors: | YAO Bao-an MAO Ya-qing |
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| Institution: | Shanghai Astronomical Observatory, Chinese Academy of Sciences, Shanghai 200030 |
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| Abstract: | Using the CCD data obtained at the 1.56m reflector at the Zo-Se station of Shanghai Astronomical Observatory from 1994 till 2007, the variation of the night sky brightness at the Zo-Se station has been measured. Due to the development of the large city-Shanghai, the night sky brightness in V has increased from about 19 mag per square arcsec to about 15.8 mag per square arcsec, i.e. the night sky has brightened up for about 20 times since 1994. Now it is difficult to do accurate photometry for stars fainter than V = 14 mag using the 1.56m reflector. |
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| Keywords: | night sky brightness Zo-Se station CCD camera |
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