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2 research outputs found
散射光对准确CCD平场的影响-修改某些反光镜挡光筒的必要性
Author
姚保安
张春生
沈昌钧
Publication venue
Publication date
01/01/2005
Field of study
No full text
Shanghai Astronomical Observatory,Chinese Academy of Sciences
球状星团M4中另一颗周期约一天的小变幅新红变星
Author
姚保安
张春生
沈昌钧
Publication venue
Publication date
01/01/2007
Field of study
No full text
Shanghai Astronomical Observatory,Chinese Academy of Sciences