This website provides astronomical software: Alcyone Ephemeris - an accurate and fast astronomical ephemeris calculator covering the period 3000 BC to AD 3000. It calculates heliocentric, geocentric, and topocentric ephemeris data of the Sun (Earth), planets, 18 natural satellites, and small bodies (minor planets and comets) in ecliptical, equatorial, and horizontal coordinates, with optional corrections for parallax and refraction; rectangular coordinates, velocity, apparent diameter, magnitude, phase, lunar libration, and more. In addition Alcyone Ephemeris offers a wealth of functionality: star chart generation, 3D-visualization of heliocentric and planetocentric orbits, plotting ephemeris data (as a function of time or in a parametric plot), searching for specific values, ephemeris data export (Excel, HTML, XML, Text), scripting to write programs for more complex computations, and printing. Access to the complete Bright Star Catalogue, a calendar conversion tool, and an astronomical event calculator are available.