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https://www.swpc.noaa.gov/products/predicted-sunspot-number-and-radio-flux
Predicted Sunspot Number And Radio Flux | NOAA / NWS Space Weather Prediction Center
flux noaa nwsspace weather predictionsunspot numberpredictedradio
https://www.sidc.be/SILSO/infosnytot
Yearly mean total sunspot number | SIDC
Time range: 1700 - last elapsed year Data description: Yearly mean total sunspot number obtained by taking a simple arithmetic mean of the daily total sunspot...
sunspot numberyearlymeantotalsidc
https://www.sidc.be/SILSO/dayssnplot
Daily and monthly sunspot number (last 13 years) | SIDC
Daily sunspot number (yellow), monthly mean sunspot number (blue), smoothed monthly sunspot number (red) for the last 13 years and 12-month ahead predictions...
sunspot number13 yearsdailymonthlylast
https://www.sidc.be/SILSO/infossntotdaily
Daily total sunspot number | SIDC
sunspot numberdailytotalsidc