On-line Archive

Historical literature

In this section, you can find links to historical works that contain information about sunspots and solar observations.

Modern papers

In this section, you can find links to recent articles and books related to historical sunspot observations.

Miscellaneous

Miscellaneous section of this on-line archive.

Data

Data section of this on-line archive. You can download several data files about historical sunspot observations.

Sunspot drawings

You can find a collection of historical sunspot drawings in this section.