note that this location for the documentation is now obsolete - go to github for the latest version

The JSOFA software is a pure Java translation of the International Astronomical Union's C SOFA software library (version 20160729) at http://www.iausofa.org/.

For more information on using please read the javadoc overview.

A jar (Java version 1.7) of the software can be obtained from the local Maven repository http://astrogrid.jb.man.ac.uk/maven/ directly by clicking the links in the sidebar and if using maven as a build tool by including the following in the POM


The software passes all its unit tests which are based on the standard tests that come with the official C and Fortran versions from the IAU.

The source code is on GitHub