Douglas J. Mink
For five years, WCSTools as provided image astrometry for astronomers who need accurate positions for objects they wish to observe. Other functions have been added and improved since the package was first released.
The goal of this project is to have a good set of command line tools for dealing with images, their headers, source catalogs, and relationships between them. The FITS WCS standard will be completely supported when it is agreed upon, and access to more catalog-serving web sites will be added in the future.