Distribution of Flares on the Sun during 1955--1985: ``Hot Spots'' (Active Zones) Lasting for 30 Years

摘要: The coordinates of major solar flares observed during the period from January 1955 through August 1985 are analyzed. About 100 superactive regions (large, complex, active containing large sunspots) produced 46 percent period. Superactive appeared more frequently in certain areas sun called hot spots or zones. synodic rotation periods northern and southern hemisphere were 26.72 d 26.61 d, respectively. One two persisted three cycles, other was cycles 19 21 but dormant cycle 20. These findings suggest that mechanism producing must be stable for longer. 38 references.