Sunspot index graphics

Click on figures for more detail
graphics are updated every first of the month

The daily, monthly and monthly smoothed sunspot numbers for the past 12 years, and predictions for 12 months ahead.

The monthly and monthly smoothed sunspot numbers are plotted for the present cycle and the four latest cycles.



Kalman filter improvement of the monthly smoothed Sunspot Number prediction by SIDC classical method (SM) and by the Combined method (CM) for 12 months ahead.

Kalman filter improvement of the monthly smoothed Sunspot Number prediction by McNish&Lincoln method (M&L) for 12 months ahead.

The north and south components of the monthly smoothed sunspot number for the present cycle and the latest four cycles.

Maunder "butterfly" diagram.


The sunspot number since 1750.