On Fri, Feb 23, 2018 at 09:14:32AM +0100, Ole Streicher wrote: > Then (and may be more important): These files are not copyrightable ad > all, since they are natural data; they describe *facts*. As one can't > copyright the distance to the moon, one can't copyright the details of > earth rotation.
A collection of facts can have a copyright even if the facts themselves can not. This is known as the Directive 96/9/EC on the EU. http://www.esa.int/About_Us/Law_at_ESA/Intellectual_Property_Rights/Copyright_and_databases