CHARACTERISTICS OF SUNSPOT GROUP 5395

查看全文 作　　者：Zhao AidiPurple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210008 China 出　　处：《天文研究与技术》索引1990年第4期,共4页 摘　　要：1 INTRODUCTION The sunspot group 5395 was appeared in the east of the solar disc on 6 March anddisappeared in the west of the solar disc on 20 March in 1989. Its heliographiccoordinates were N34, L257. It has been the largest group according to its area since 关 键 词：LATITUDE LONGITUDE moved appeared EVERYDAY SPOTS DOWNWARD Northeast rotation ALTITUDE