  Detached eclipsing binary star systems are our primary source of measured
physical properties of normal stars. I introduce DEBCat: a catalogue of
detached eclipsing binaries with mass and radius measurements to the 2%
precision necessary to put useful constraints on theoretical models of stellar
evolution. The catalogue was begun in 2006, as an update of the compilation by
Andersen (1991). It now contains over 170 systems, and new results are added on
appearance in the refereed literature. DEBCat is available at:
http://www.astro.keele.ac.uk/jkt/debcat/
