The free 3D planetarium app "Celestial Equator" is the best way to discover the stars, constellations, and planets in the universe. With this app, you can explore the universe in 3D, learn about celestial objects, and identify the stars, constellations, and planets in the sky.

The virtual planetarium in the app is a realistic simulation of the sky, and the 3D view allows you to rotate and zoom the view to study specific objects. You can adjust the display to suit your preferences, and you can use the app as a compass to help you in locating stars and planets.

The app also allows you to select specific coordinates to view the stars, constellations, and planets in the sky. You can also change the time settings to view the stars, constellations, and planets at specific times of the day.

This app is designed for anyone interested in astronomy and space observations, and it's a great way to learn more about the stars, constellations, and planets in the universe.