摘要
The 3B optical flare was produced within the AR 5395 on March, 15. 1989. It lo-cated at N35, W33. The sunspot group was large and had complex structure. The mainspot formed a large stripe within the AR can be clearly seen from chromosperic images.During the day, the sunspot group type was FKC, magnetic configuration BGD and
出处
《天文研究与技术》
CSCD
1990年第4期51-52,333,共3页
Astronomical Research & Technology