The License for the Swiss Ephemeris Free Edition This is a preliminary version subject to change Included below is draft version 0.2 of the license that we are currently using for the Swiss Ephemeris Free Edition. The license is called the Swiss Ephemeris Public License (or "SEPL"), and qualifies as an Open Source license. It is thus appropriate for people wishing to write software under the Open Source model where all source code to the software is made available to all users and can be freely modified and redistributed. To develop software with the Swiss Ephemeris Free Edition, simply meet the requirements in the SEPL. Your software can be licensed by any license that permits the requirements in section 6. If you do not meet the requirements in the SEPL, for example if - you develop and distribute software which is sold for a fee higher than a reasonable copy charge - or/and you develop and distribute software which is not published under an Open Source or equivalent license you must purchase the Swiss Ephemeris Professional Edition under the Swiss Ephemeris Professional License. Comments to the license: 'Legally' developed in 5 means either developed under this license, 6, or under a professional license. ---------------------------------------------------------------------------- THE SWISS EPHEMERIS PUBLIC LICENSE (SEPL) version 0.2 Copyright (C) 1998 Astrodienst AG, Switzerland. Everyone is permitted to copy and distribute this license document. This license applies to any software containing a notice placed by the copyright holder saying that it may be distributed under the terms of the SEPL version 0.2. Such software is herein referred to as the Swiss Ephemeris Software (SE). This license covers modification and distribution of the SE, use of third-party application programs based on the SE, and development of free software which uses the SE. Granted Rights 1. You are granted the rights set forth in this license provided you agree to any and all conditions in this license. Whole or partial distribution of the SE in any form signifies acceptance of this license. 2. You may copy and distribute the SE provided that the entire package is distributed, including this License. 3. You may make modifications to the SE files and distribute your modifications in a form distinct from the SE. The following restrictions apply to modifications: a. Modifications must not alter or remove any copyright notices in the SE. b. If modifications to the SE are released under this license, a non-exclusive right is granted to the holder of the copyright of the unmodified SE to distribute your modification in future versions of the SE provided such versions remain available under these terms in addition to any other license. 4. You may distribute machine-executable forms of the SE or machine-executable forms of modified versions of the SE, provided that you meet these restrictions: a. You accompany the SE with this license. b. You must ensure that all recipients of the machine-executable forms are also able to receive the complete machine-readable source code to the distributed SE, including all modifications, without any charge beyond the costs of data transfer. c. You ensure that all modifications included in the machine-executable forms are available under the terms of this license. 5. You may use the original or modified versions of the Swiss Ephemeris Software to compile, link and run application programs legally developed by you or third parties. 6. You may develop application programs, reusable components and other software items that link with the original or modified versions of the Swiss Ephemeris Software. These items, when distributed in machine-executable form, have the following restrictions: a. You must ensure that all recipients of machine-executable forms of these items are also able to receive and use the complete machine-readable source code to the items without any charge beyond the costs of data transfer. b. You must explicitly license all recipients of your items to use and re-distribute original and modified versions of the items in both machine-executable and source code forms under terms identical to those under which they received the items. 7. The trademarks 'Swiss Ephemeris' and 'Swiss Ephemeris inside' and the associated icons may be used for promoting software, products or services which use or contain the Swiss Ephemeris. The names of the authors of the Swiss Ephemeris Software and of the Copyright Holder may not be used to endorse or promote products or services derived from or linking to the Swiss Ephemeris Software without specific prior written permission. This license file and the copyright notices in the source files are the onlyplaces where the author's names may legally appear without specific prior written permission. Limitations of Liability In no event shall the authors of the Swiss Ephemeris Software or their employers be liable for any lost revenue or profits or other direct, indirect, special, incidental or consequential damages, even if they have been advised of the possibility of such damages. No Warranty The Swiss Ephemeris Software is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. ---------------------------------------------------------------------------- Copyright 1998 Astrodienst AG Questions? Ask swisseph@astro.com Mailing list: To subscribe to the Swiss Ephemeris mailinglist, please send email to majordomo@astro.ch with the following text in the message body: subscribe swisseph