This site is aimed at providing useful information on sundials and astrolabes, and to introduce the Shadows software package.
Texts, images, photographs, scripts, animations and other type of content shown on this site and in the help file of Shadows are intellectual properties of their author, François Blateyron, and are protected by laws. Third party photographs are credited at the bottom of each page. Any reproduction is forbidden without written authorization, except in some cases described below.
Photographs of sundials made by Shadows users are properties of their respective authors and are used here with their permission.
You may use the content of this website for personal, non-commercial purposes. Students may use its text and images in class and for schoolwork. Teachers and educators may use its ideas and resources in educational activities. Please acknowledge the source and direct your audience to this website.
You may not publish extracts from this website on another website or in any other medium without permission.
Unauthorised use of material from this website may infringe applicable copyright laws.
Journalists and professionals willing to cite or use any part of this site (such as photographs) can refer to the page dedicated to journals and journalists.
Published papers can be seen at the bottom of the page Links on sundials.
You may add a link to this site on your own site or blog, pointing either in the home page: www.shadowspro.com or to a specific page. Make sure that the link starts with the main domain name (eg: www.shadowspro.com/en/astrolabes.html). Do not use the address displayed in your Internet browser if different.
Do not abuse of the free resources provided by Internet and respect property. Thanks.
Shadows is a freeware/shareware software that you can download on this site and other sites around the world or on CDROM included in magazines. It cannot be sold individually outside this web site. We did not grant any right to sell this software to any company or merchant web site. In case of doubt, please contact us and report any suspicious use.
You may distribute this software to your relatives and friends in its freeware form (without license). Shadows Expert or Shadows Pro licenses provided to registered users are strictly personal and cannot be rented or copied. You may order your own license on the Order page.
The latest version of the Shadows end-user license agreement is installed with the software or can be seen here.
If you are the author of material that you believe is being used on this website without permission, please contact us so that the matter can be reviewed.
This site, the Shadows software and its documentation were created and are maintained by François Blateyron, amateur astronomer, software engineer, and expert in surface metrology.
Thank you.