On Wed, 23 Mar 2016 19:16:06 +0100, you wrote: >I'm having a discussion on the Legal mailing list about the usage of >databases like the Saguaro Astronomy Club catalog [2] or Dr. Wolfgang >Steinicke NGC database [2]. >For example Kstars uses the SAC catalog as source for its NGC database. > From the SOURCES.readme file in kstars sources [3]: >> SAC Catalog >> =========== >> >> Part of our NGC/IC data is obtained from the Saguaro Astronomy Club >> catalog, compiled by Steve Coe. >> >> While the website seemed to indicate that the catalog is only >> available for non-commercial use (and hence incompatible with KStars), >> Akarsh Simha received a correspondence with Steve Coe, who is the >> Copyright holder of the catalog. Actually, it appears he may not be. This page on the NGC/IC website: http://www.klima-luft.de/steinicke/ngcic/rev2000/Explan.htm says: "The data of my Revised New General Catalogue and Index Catalogue are used by Mathematica, TheSky, Guide, SkyMapPro, Starry Night, Eye&Telescope, the SAC database and the database of the Losmandy mounting" If as this claims SAC contains data from NGC/IC then SAC would be required to follow the license terms of NGC/IC, and the person running SAC cannot relicense that data without the permission of NGC/IC. >From this page: http://www.klima-luft.de/steinicke/ngcic/ngcic_e.htm we get: "Any non-commercial use of my data is free! If a commercial use is planned, please contact me!" This would appear to make it impossible to include NGC/IC in Fedora, and that would also apply to any derivative works like SAC. [Note that Sky & Telescope also appears to use this data, which may be an indication as to why they are unable to relicense their product] _______________________________________________ Fedora astronomy mailing list astronomy@xxxxxxxxxxxxxxxxxxxxxxx http://fedoraproject.org/wiki/SIGs/Astronomy https://admin.fedoraproject.org/mailman/listinfo/astronomy