In astronomy, what are a group of stars with specific names, such as the nine planets at sea and the stars of the Four Emperors?

Nine navigation planets refer to nine stars determined by ancient Chinese navigators based on long-term navigation experience. Judging the direction by observing these stars. The nine navigation planets are: Xuanyuan XIV, Bisuwu, Beihe III, Beiluoshimen, Loususan, Jiaosuyi, Antares II, Hegu II and Shisuyi.

In ancient Persia, Xuanyuan XIV, Bisuwu, Antares II and Beiluo were called the four heavenly kings.

In fact, you can Baidu these and introduce them more comprehensively.

And the big dipper.