title: The sunspot cycle no. 24 in relation to long term solar activity variation.
abstract: The solar minimum between solar cycles 23 and 24 during the period 2007-2009 has been the longest and deepest one at least since for the last 100 years. We suggest that the Sun is going to his next supercenturial minimum. The main aim of this paper is to tell about arguments concerning this statement. They are based on series of studies, which have been provided during the period since 1997 up to 2010. The progress of solar cycle 24 since its minimum at the end of 2008 up to the end of October 2011 in the light of long term solar activity dynamics is analyzed.
authors: Bulgarian Academy of Sciences - Institute of Astronomy and National Astronomical Observatory "Rozhen", 1784 Sofia, Tsarigradsko Shausee 72, Bulgaria.
authors: Boris
authors: B
authors: Komitov
authors: Russian Academy of Sciences - Geophysical Center, Molodezhnaya St. 3, 119296 Moscow, Russian.
authors: Vladimir
authors: V
authors: Kaftan
keywords: 200-Year solar cycle; Hallstadtzeit; Solar cycle no. 24