CAOSP abstracts, Volume: 23, year: 1993

Abstract: The time-latitudinal distribution of the number and area of prominences observed at Lomnicky stit coronal station during the period 1967-1991 has been studied in order to check if the secondary polar zones of prominences activity can be traced. The results show that the secondary polar zone appears in one of the hemispheres during the ascending phases of solar cycles 20 and 22. Possible connection of the double structure of the prominence polar zone with threefold occurrence of the high-latitudinal magnetic field of the Sun is discussed.

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