Google Sky App

This is an amazing astronomy app, the app allows you to search for any planet or star. You can control if you want to see Stars, COnstellations, Messier Objects, Planets, Meteor shawors, RA/DEC grid, and the horizion or all at the same time. It also has a time travel part where you can travel to any time or place. There is also a gallery where you can look at Crab Nebula, Eagle Nebula, Andromeda galaxy and many many more. Here is the website
www.google.com/sky/