Is IRAF public domain software?
Although IRAF is available free of charge over the network to anyone who may find it useful it is not considered public domain software since it is copyrighted. Here is part of the copyright notice that appears in the distributed system. —————– Copyright(c) 1986 Association of Universities for Research in Astronomy Inc. The IRAF software is publicly available, but is NOT in the public domain. The difference is that copyrights granting rights for unrestricted use and redistribution have been placed on all of the software to identify its authors. You are allowed and encouraged to take this software and use it as you wish, subject to the restrictions outlined below. Permission to use, copy, modify, and distribute this software and its documentation is hereby granted without fee, provided that the above copyright notice appear in all copies and that both that copyright notice and this permission notice appear in supporting documentation, and that references to the Association of
