StarFit is a Python package for matching stellar abundance measurements against a database of model stellar explosions. Based on the old IDL code by Alexander Heger.

StarFit can match combined abundances of multiple models. For single stars and combinations of multiple stars, a complete search can be found. For three or more stars, the problem is extremely expensive, so a Genetic Algorithm has been implemented by Conrad Chan to efficiently find an approximate solution.

An online interface (with a subset of functionality) is available at starfit.org.

Documentation: http://starfit.rtfd.io/