When you are using astronomical telescope, some time it is bit difficult to introduce dark star / nebula.This app [Smart Star Hopping] helps you on this situation.
1. Bright star is easy to introduce e.g. when you can see the star by your eyes. At first, please introduce bright star around target star / nebula.
2. Using other planetarium app, to find target star / nebula's RA and DEC. Then these values input in [Smart Star Hopping] app.
3. Press [Set] button and wait 3 seconds. Please don't move during this moment.
4. After that dAlt and dAzm will appear on the app. These are telescope turn angle of up / down and right / left. When these values go to zero, target star / nebula might be in the telescope view.