CyberSky

If you want to learn more about the sky overhead, namely the starry names and patterns, then CyberSky is exactly what you need.

This full-featured planetarium software displays maps of the sky that you can customize in a variety of ways.

Set any location on the Earth, change the viewing angle accordingly and view the names of different objects. Switch between various modes to observe planets, constellations, the Milky Way, a huge amount of stars, thousands of deep-sky objects, and other celestial bodies. You can save maps as bitmap, GIF, JPEG, PNG, and TIFF images, preview, and print them.

CyberSky includes several catalogs of asteroids, comets, and meteor showers that you can access, search, and modify. You can also search for various objects displayed on the map by providing their position coordinates in equatorial, horizontal, ecliptic, and galactic systems. Switch to the night-vision mode when you use the program outdoors for visual comfort.

CyberSky comes with such a massive number of features that you might get overwhelmed at first sight. But when you start using it, you'll quickly get the idea of how it functions. The program provides an awesome way to learn many details about astronomy and explore the sky from the conform of your home.