What is seven stars?

Qixingbi is an ancient cultural relic. Qixingbi is one of the ancient cultural relics in China, an outstanding representative of China stone carving art, and is known as "the pinnacle of Bi". It is a seven-sided jade with seven round objects of different sizes carved on it, representing the position of the Big Dipper. Qixingbi was created in the Tang Dynasty and is now in the Beilin Museum in Xi City, Shaanxi Province, China. It is a precious heritage of ancient Chinese cultural relics.