CyberSky is an exciting, entertaining, and educational astronomy program that transforms your personal computer into your personal planetarium. CyberSky provides an excellent way to learn about astronomy and to explore the wonders of the sky visible in the distant past, the present, and the far-off future. CyberSky displays accurate charts of the sky as seen from any location on the earth. Sky charts can include stars, constellations, deep sky objects, and solar system objects, and can be enhanced by the addition of labels, coordinate system grids, and reference lines. CyberSky's user-friendly interface allows you to easily change your view of the sky, search for celestial objects, and display data about those objects. CyberSky also prints attractive sky charts that you can take outside with you. CyberSky was designed to be simple enough to appeal to people who are just beginning to discover astronomy, yet provide enough information to be useful to people who have already learned the basics. CyberSky has the ability to quickly and easily show you what is visible today or next weekend, but it is also accurate enough to help with research involving the appearance of the sky in the distant past, for example, during the era of pyramid construction in ancient Egypt. CyberSky's ease of use and amazing animation feature make it an innovative and motivating learning environment. CyberSky provides an excellent way to learn the names and positions of the stars, constellations, and deep sky objects, and to become familiar with the motions of solar system objects across the sky. Many of the most basic and interesting astronomical phenomena can only be observed over weeks or months of time, and by observing the sky from widely separated locations. CyberSky lets you do this; it places the sky under your control.