Sunspot Plotter

How active was the sun on your birthday? [My birthday is charted above.]

This sunspot plotter is easy to use. For example, select your birth date from the pull-down menus and the plotter instantly shifts to the day you were born.

The red curve traces monthly-averaged sunspot numbers tabulated by the Solar Influences Data Center in Belgium. Data points go all the way back to 1755, so you can investigate the relationship between solar activity and many historical events:

• Do stocks crash during solar minimum? (Some people think so.)
• Did NASA send astronauts to the Moon during Solar Max?
• How do sunspots affect the length of mini-skirts?

If you find any interesting coincidences, be sure to post your findings in the comments.

Related: Sunspot Cycle 24 Prediction Update