位于怀柔的中国科学院北京天文台怀柔观测站的太阳磁场望远镜于1987年投入观测以来,取得了显著成就。在国际上首次发现太阳耀斑出现在0.5至2小时之前的HB多普勒速度场反变线红移一侧等大批观测资料,在世界上首次与美国大熊湖天文台开展了“日不落”联合观测(即利用中美时差,对太阳进行24小时不间断的观测),自1988年以来,平均每年进行4次联合观测。并与日本国立天文台、京都大学飞弹天文台、前苏联克里米亚天文台等也进行了联合观测;自1990年以来,该站学术带头人艾国祥研究员已4次在国际学术会议上作特邀报告,引起良好反应。1991年7月在国际天文学联合会第21次大会第10和第12委员会上做“中美合作的磁场研究”特邀报告,这在中国太阳物理学界是第一人。国际天文学会已确定第141届学术会议以“太阳活动区磁场和速度场”为题于1992年9月在北京举行,艾国祥研究员和国际著名太阳物理学家美国大熊湖天文台 The Sun Magnetic Field Telescope at Huairou Observatory, Beijing Astronomical Observatories, Huairou, China has made remarkable achievements since it was put into observation in 1987. In the world for the first time found that the sun flare appears in 0.5 to 2 hours before the HB Doppler velocimetry line redshift side of a large number of observations and other data in the world for the first time with the United States Big Bear Lake Observatory launched the “sunset” joint Observations (ie taking advantage of the time difference between China and the United States to observe the sun 24 hours a day), an average of 4 joint observations per year have been conducted since 1988. And conducted joint observations with Japan's National Astronomical Observatory, Kyoto University Missile Astronomical Observatory and Crimean Observatory of the former Soviet Union. Since 1990, Professor Ai Guoxiang, an academic leader of this station, has made special guestations at international academic conferences Report, aroused good response. In July 1991, at the 10th and 12th Committees of 21st Congress of the International Astronomical Union, a special report entitled “Magnetic Field Research on Sino-US Cooperation” was conducted, which is the first person in the Chinese solar physics community. The International Astronomical Society has determined that the 141st Symposium was held in Beijing in September 1992 with the title of “Magnetic Field and Velocity Field in the Solar Activity Area”. Researcher Ai Guoxiang and the internationally acclaimed solar physicist, the Great Bear Lake Observatory