You can select the observation location by:
1) select the city from the list; 2) input the latitude and longitude directly; 3) click your location on the world map.
Observation date and time
Our program will select the time zone for you. If the displayed data is wrong, please make necessary adjustment.
Star Map Configuration
Please select the dimmest stars magnitude to be shown on the star map by clicking the radio buttons. You can also check the box to show the celestial poles, celestial equator,
ecliptic, and other objects.