Software packages that are distributed through these webpages are licensed under the GNU General Public License version 3. A copy of the license (filename LICENSE or COPYING) is included in the package. You can also find the text here. Each software package will be clearly marked as such next to the download link.
The image in the masthead is distributed by NASA and the STScI and is licensed under this copyright.
The webpages, all data that are distributed through these webpages, as well as any other documents that are hosted on this site (excluding software packages and the image in the masthead) are licensed under the:
Creative Commons Attribution 4.0 International License.
The copyright holder is:
Peter van Hoof
Royal Observatory of Belgium
Ringlaan 3
1180 Brussel
Belgium
