Astronomer Research Project Sources-Tycho Brahe

• Tycho Brahe Pioneer of Astronomy by Dan Nardo
• http://galileo.rice.edu/sci/brahe.html
• http://csep10.phys.utk.edu/astr161/lect/history/brahe.html
• http://astronomyhistory.suite101.com/article.cfm/tycho_brahes_astronomy
• http://www.nada.kth.se/~fred/tycho/index.html

Update:

• Astronomy: Looking At The Stars by Susan and Steven Wills
• http://galileo.rice.edu/sci/observations/comets.html
• http://www.projectpluto.com/almagest.htm