Google Sky Map vs Star Walk 2

For users who are looking for a particular planet, star, or constellation, all other listings in the app can be disabled except for the target.

When the phone is aimed at a certain star, the name of the star (or stars) will come up on the screen. This app lists names of stars, constellations, and planets.

As long as the name of the star or planet is known, it can be found using this app. It is much easier to find an object using the in-app search function than trying to locate it based on other stars or planets. Once the object is searched, an arrow will be displayed that directs the user to the right location in the sky.

Instead of only displaying what would be visible to the human eye, Star Walk displays gamma ray, x ray, h-alpha, infrared, microwave, and radio.

Users can toggle which features are activated, such as constellation description or satellite display.

Just tap on a star and see what it looks like from a closer perspective.

For 99 cents, satellites can be tapped for identification. This app contains information on over 9000 satellites.

Star Walk 2 attempts to give users a comprehensive view of all the things that are currently happening in space, this includes events at other planets. For instance, it displays the angle of rotation around the sun, sunrise, sunset, and length of day on that particular planet.

Instead of just displaying a feed of what the sky should look like when the device is aimed in different directions, Sky Walk paints stars, constellations, and satellites over real time images taken from the device's camera.