It is an auxiliary application for observing constellations and planets and moon.

You can set the observation site to the current location, specify from the map, set the observation time to the current time, and specify.
It helps you to find out which constellations and planets you care about on the go, and which constellations and planets you can observe before going out.

The display can be reduced or enlarged, but when it is reduced, some stars are not displayed.
If you want to check, please zoom in.

※ It is the operation explanation
You can set the current location from GPS in the automatic setting, or set the destination from the map before you go out.

If you set the observation site automatically, it will be displayed in the whole sky.
The center of the screen is empty looking up. Below the center is the starry sky seen in front.

Since the device uses a built-in compass, if the compass accuracy is low, please calibrate the compass.
You can check the calibration method on the app setting screen that switches by tapping the observation site twice.

If you set the observation site manually, you can change the observation site by flicking. You can also zoom in and out with pinch in and pinch out (two-finger operation).

The observation time can be selected from the current time and the specified time.
For the specified time, tapping the observation screen once will display the time in the center.
After that, you can change the time by flicking up and down (hours) and left and right (minutes).