"Planetarium VR" is using gps and advanced sensor. Only holding the device in the sky, you can see the constellations. "Planetarium VR" supports "Cardboard". "Planetarium VR" is equipped with a variety of options. -view the starry sky in the waterside. -Best in a dark place. ■function -stellar to be displayed more than 3000. -using gps and advanced sensor. -Display all of the stars and constellations, apply regardless of the Northern Hemisphere or the Southern Hemisphere. -Display 88 kinds o