Astrological calculations on this website are powered by Swiss Ephemeris, developed by Astrodienst AG. We gratefully acknowledge the work of Dieter Koch and Alois Treindl in creating this valuable astronomical resource. The Swiss Ephemeris is made available to the public under the terms of the GNU General Public License. While we provide free access to basic ephemeris data as required by this license, our premium astrological blueprints and interpretations are proprietary services built upon these calculations. For more information about Swiss Ephemeris, please visit www.astro.com/swisseph.