This figure summarizes sunspot number observations. Since c. 1749, continuous monthly averages[dead link] of sunspot activity have been available and...
sunspot numbers: A new solar activity reconstruction. Part 1.". Solar Physics 179: 189-219. Hoyt, D. V., and K. H. Schatten (1998b). "Group sunspot numbers:...
images: File:Changes in total solar irradiance and monthly sunspot numbers, 1975-2013.png licensed with Cc-zero 2014-11-21T07:49:20Z Enescot 2318x1746...
sunspot numbers: A new solar activity reconstruction. Part 1.". Solar Physics 179: 189-219. Hoyt, D. V., and K. H. Schatten (1998b). "Group sunspot numbers:...
See Hansen et al. for original data sources. For TSI and monthly sunspot numbers, data are given for the 365-day mean and smoothed mean, respectively...
magnetic activity. Sunspots are darker, cooler regions of the sun's surface associated with high magnetic flux. Higher numbers of sunspots indicate a more...
400 year sunspot history, measured with Wolfer numbers. 1790 to 1820: Dalton Minimum 1645 to 1715: Maunder Minimum Source: http://science.nasa...
gnuplot. Author This file is lacking author information. Other versions File:Sunspot Numbers.png (raster); File:Sunspot numbers pl.svg (Polish translation)...
DescriptionSunspot Number-it.png Italiano: traduzione di File:Sunspot_Numbers.png Date 7-10-2008 Source Wikimedia commons Author HeNRyKus...
depicts the last three solar cycles as measured in solar irradiance, sunspot numbers, solar flare activity, and 10.7 cm radio flux. Solar irradiance, i...
