Alcyone Software Features the following programs: an ephemeris calculator, a collection of astronomical data in electronic form, Planet Orbits, C88, and Planetary, Lunar, and Stellar Visibility. | Alcyone astronomie Site d’astronomie amateur avec de petits instruments. Actualité, ateliers, éphémérides, forums, liens, instruments, observations du soleil. | Grupo Alcyone Empresa de consultoría administrativa. Contiene información de servicios y contacto. |