Statistics of sunspot activity . The sunspot indices . ... NGDC's observations . The solar regions . ... Average annual indices . ... December . ... December, 2011 . Visual indices of solar activity by National Geophysical Data Center . ... Average . ...
Statistics of sunspot activity . The sunspot indices . ... NGDC's observations . The solar regions . ... Average annual indices . ... November . ... November, 2011 . Visual indices of solar activity by National Geophysical Data Center . ... Average . ...
Statistics of sunspot activity . The sunspot indices . ... NGDC's observations . The solar regions . ... Average annual indices . ... October . ... October, 2011 . Visual indices of solar activity by National Geophysical Data Center . ... Average . ...
Statistics of sunspot activity . The sunspot indices . ... NGDC's observations . The solar regions . ... Average annual indices . ... September . ... September, 2011 . Visual indices of solar activity by National Geophysical Data Center . ... Average . ...
Statistics of sunspot activity . The sunspot indices . ... NGDC's observations . The solar regions . ... Average annual indices . ... August . ... August, 2011 . Visual indices of solar activity by National Geophysical Data Center . ... Average . ...
Statistics of sunspot activity . The sunspot indices . ... NGDC's observations . The solar regions . ... Average annual indices . ... July . ... July, 2011 . Visual indices of solar activity by National Geophysical Data Center . ... Average . ...
Statistics of sunspot activity . The sunspot indices . ... NGDC's observations . The solar regions . ... Average annual indices . ... June . ... June, 2011 . Visual indices of solar activity by National Geophysical Data Center . ... Average . ...
Statistics of sunspot activity . The sunspot indices . ... NGDC's observations . The solar regions . ... Average annual indices . ... May, 2011 . Visual indices of solar activity by National Geophysical Data Center . ... Average . ... 0.00 . ...
Statistics of sunspot activity . The sunspot indices . ... NGDC's observations . The solar regions . ... Average annual indices . ... April . ... April, 2011 . Visual indices of solar activity by National Geophysical Data Center . ... Average . ...
Statistics of sunspot activity . The sunspot indices . ... NGDC's observations . The solar regions . ... Average annual indices . ... March . ... March, 2011 . Visual indices of solar activity by National Geophysical Data Center . ... Average . ...
Statistics of sunspot activity . The sunspot indices . ... NGDC's observations . The solar regions . ... Average annual indices . ... February . ... February, 2011 . Visual indices of solar activity by National Geophysical Data Center . ... Average . ...
Statistics of sunspot activity . The sunspot indices . ... NGDC's observations . The solar regions . ... Average annual indices . January . ... January, 2011 . Visual indices of solar activity by National Geophysical Data Center . ... Average . ...
Statistics of sunspot activity . The sunspot indices . ... The solar regions . ... 2010 . ... Solar activity in 2010 . Visual indices of solar activity by author's observations . Average by . ... 0.00 . ...
Statistics of sunspot activity . The sunspot indices . ... The solar regions . ... 2010 . ... December . ... December, 2010 . Visual indices of solar activity by author's observations . ... Average . ... 0.00 . ...
Statistics of sunspot activity . The sunspot indices . ... The solar regions . ... 2010 . ... November . ... November, 2010 . Visual indices of solar activity by author's observations . ... Average . ... 0.00 . ...
Statistics of sunspot activity . The sunspot indices . ... The solar regions . ... 2010 . ... October . ... October, 2010 . Visual indices of solar activity by author's observations . ... Average . ... 0.00 . ...
Statistics of sunspot activity . The sunspot indices . ... The solar regions . ... 2010 . ... September . ... September, 2010 . Visual indices of solar activity by author's observations . ... Average . ... 0.00 . ...
Statistics of sunspot activity . The sunspot indices . ... The solar regions . ... 2010 . ... July . ... July, 2010 . Visual indices of solar activity by author's observations . ... Average . ... 0.00 . ...
Statistics of sunspot activity . The sunspot indices . ... The solar regions . ... 2010 . ... August . ... August, 2010 . Visual indices of solar activity by author's observations . ... Average . ... 0.00 . ...
Statistics of sunspot activity . The sunspot indices . ... The solar regions . ... 2010 . ... June . ... June, 2010 . Visual indices of solar activity by author's observations . ... Average . ... 0.00 . ...