SkySafari
SkySafari is a powerful planetarium that fits in your pocket. It puts thousands of stars and planets at your fingertips. It lets you find objects in the sky using your device's built-in compass and accelerometer. It includes hundreds of astronomical images, and contains encyclopedic descriptions of the constellations, stars and planets. Use the interactive star chart from anywhere on the globe! You don't even need to walk away from the city lights - the star chart shows you all of the stars and planets at their exact spots even if they are difficult for you to see.
