AstroMatos is a Freeware. There is absolutely no obligation to pay any money to use AstroMatos. You can support the development of AstroMatos with a donation.
This software is provided "AS IS", without warranty of any kind.
The entire and exclusive liability and remedy for breach of this limited warranty shall be limited to replacement of defective media or documentation and shall not include or extend to any claim for or right to recover any other damages, including but not limited to, loss of profit, data, or use of the software or special, incidental or consequential damages, or other similar claims, even if the author has been specifically advised of the possibility of such damages.
The software product is protected by copyright laws and international copyright treaties, as well as other intellectual property laws and treaties. The software, their source code, documentation, the data organization and the appearance of the graphic interfaces, are the author's exclusive property. You may not reverse engineer, decompile, disassemble the software.
AstroMatos can be distributed freely, if it is not sold. Only the support containing the software could be sold (CD-ROMs, floppy...) if the price does not exceed the price commonly practiced for this media. The software must be distributed in its original form (AstroMatosSetup.msi) without any modification. The distributor must specify that this software is a Freeware product. The versions "BETA" of AstroMatos must not be distributed (these versions are identified by the word "BETA" in the title of the application window). These AstroMatos versions are only for tests.
AstroMatos uses pictures from the Sloan Digital Survey :
"Funding for the SDSS and SDSS-II has been provided by the Alfred P. Sloan Foundation, the Participating Institutions, the National Science Foundation, the U.S. Department of Energy, the National Aeronautics and Space Administration, the Japanese Monbukagakusho, the Max Planck Society, and the Higher Education Funding Council for England. The SDSS Web Site is http://www.sdss.org/.
The SDSS is managed by the Astrophysical Research Consortium for the Participating Institutions. The Participating Institutions are the American Museum of Natural History, Astrophysical Institute Potsdam, University of Basel, University of Cambridge, Case Western Reserve University, University of Chicago, Drexel University, Fermilab, the Institute for Advanced Study, the Japan Participation Group, Johns Hopkins University, the Joint Institute for Nuclear Astrophysics, the Kavli Institute for Particle Astrophysics and Cosmology, the Korean Scientist Group, the Chinese Academy of Sciences (LAMOST), Los Alamos National Laboratory, the Max-Planck-Institute for Astronomy (MPIA), the Max-Planck-Institute for Astrophysics (MPA), New Mexico State University, Ohio State University, University of Pittsburgh, University of Portsmouth, Princeton University, the United States Naval Observatory, and the University of Washington."