Yearly sunspots data 1700-2008


Yearly (1700-2008) data on sunspots from the National Geophysical Data Center.


Number of Observations - 309 (Annual 1700 - 2008)
Number of Variables - 1
Variable name definitions::

    SUNACTIVITY - Number of sunspots for each year

The data file contains a 'YEAR' variable that is not returned by load.


The original dataset contains monthly data on sunspot activity in the file ./src/sunspots_yearly.dat. There is also sunspots_monthly.dat.

This data is public domain.

Last update: Jul 16, 2024