Chart them Yourself!
Sunspots are dark regions on the surface of the Sun which are cooler than their surroundings. Individual sunspot groups have a "life" cycle which can last for months! Using the data archived on this page, you can track a group of sunspots as it rotates around on the surface of the Sun.
There are three types of image formats available, jpeg, PDF, and postscript. PDF format is an Adobe acrobat format, a reader may be downloaded from here. Postscript files may be read using GSview.
All images below are from the Big Bear Solar Observatory in California.
Chart them Yourself!
Sunspots are dark regions on the surface of the Sun which are cooler than their surroundings. Individual sunspot groups have a "life" cycle which can last for months! Using the data archived on this page, you can track a group of sunspots as it rotates around on the surface of the Sun.
