Biographies of Tycho Brahe can be found in sites maintained by:

• Johan Runeberg and Henric Molin, Hven, Denmark
  
  
• Rice University, Houston, Texas, USA.
  
  
• Royal Institute of Technology, Stockholm, Sweden.
  
  
• St. Andrews University, St. Andrews, Scotland, U.K.
  
  
• Eric W. Weisstein, Urbana, Illinois, USA.
  
  
• University Corporation for Atmospheric Research, Boulder, Colorado, USA.