Johannes Fabricius

#	Item
1	The Historical Sunspot Record Add to Reading List Source URL: xrtpub.harvard.edu Language: English - Date: 2012-01-12 14:02:51 East Frisians Sunspot Vortices Galileo Galilei Christoph Scheiner Johannes Fabricius Maunder Minimum Sun Thomas Harriot Science Astronomy Physics
2	The Historical Sunspot Record Add to Reading List Source URL: chandra.harvard.edu Language: English - Date: 2012-01-12 14:02:51 East Frisians Sunspot Vortices Galileo Galilei Christoph Scheiner Johannes Fabricius Maunder Minimum Sun Thomas Harriot Science Astronomy Physics