This is an application to help users quickly find the constellation in the sky. It combines ar Augmented Reality Technology and 3D interactive technology rich constellation content to let users know more about the stars. Interesting ar group photo experience the wonderful fun of starry sky together. The interactive answer module in the product enables users to find answers in the process of playing. Ar telescope is not only a tool for finding constellation but also an encyclopedia for users to understand the knowledge of stars in a more interesting way.