What applications can be installed on Android, such as starwalk who can watch the stars?

1, Google starry sky: it is a starry sky observation Android software launched by Google. It is like a miniature astronomical telescope, which can guide users to look up at the stars and explore the mysteries of the universe. 2. starwalk: It is an application that makes people close to the starry sky and astronomy. The application includes a list of stars, constellations, planets and messier objects, as well as information about the changes of the moon phases, and describes the links of celestial bodies in Wikipedia. In addition, starwalk also has a "time machine" function, which allows people to observe the position of the stars, whether in the past or in the future.