Sky Map is a hand-held planetarium for your Android device. Use it to identify stars, planets, nebulae and more. Originally developed as Google Sky Map, it has now been donated and open sourced. Troubleshooting/FAQ Are there any magnets or metal nearby that might interfere with the compass? Try switching off "magnetic correction" (in settings) and see if that is more accurate. The Map is jittery If you have a phone that lacks a gyro then some jitter is to be expected. Try adjusting the sensor speed and damping (in settings). Do I need an internet connection? No, but some functions (like entering your location manually) won't work without one. You'll have to use the GPS or enter a latitude and longitude instead.