What's that bright thing over the wood shed? Is it a UFO or Venus? Grab your Palm Pilot and find out!

Planisphere is an interactive sky chart program modeled on the astronomical device of the same name. It displays the sky as it appears right now at your location - or at any other time and place you select. With a clean, uncluttered design, it is ideal for quickly locating stars, constellations and planets in the night sky.

Using Planisphere requires no prior knowledge of astronomy. All you need is a little curiosity, good eyesight and a clear night sky. If you're interested in stargazing, Planisphere is a great learning tool to help you get started.