This amazing planetarium in your pocket is an application called Star Walk, and it’s only 99 cents on the iPhone until April 12, 2011, this is normally $2.99 and worth it for the price. It’s the 50th anniversary of spaceflight and they’re celebrating by giving us a deal! It’s also available for the iPad for $4.99.
Star Walk shows you all the stars and constellations, just by holding it up to the sky and pointing, it’s amazing! It uses the GPS for hassle free alignment, on other models it’ll use the gyroscope to have you set it up and then it’s supposed to follow along from there. Plus, it calculates this all based on where you are all with no internet connection required*.
They also have a another app just for our Solar System called Solar Walk (3D Solar System model) which is more detail on just our solar system. It’s $2.99 but it’s universal and runs on iPad and iPhone; and they make Solar Walk for Mac but no Star Walk (yet!).
* Additional information (beyond the paragraphs and stats that are included) on planets (and stars?) is available and does require internet. Also the astronomy picture of the day requires the internet.
