Star charts show the arrangement of stars in the sky, ... Styles have evolved over time, ... with the chart's north marker pointing north.

Our visual knowledge of the current North Star (because of Earth's axial wobble, the title passes to different stars over the eons) runs deep. Artists, old and new, have depicted Polaris shining ...

He and Yongheng Zhao, a fellow researcher, used a type of A.I. called computer vision to estimate the celestial north pole's position at the time the star manual was made.