Polaris Clock

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关于此应用

直观地查看北斗七星相对于北极星的方位——就像夜空中的钟面一样。根据您当地的恒星时，查看北方天空的实时旋转。了解古代水手和探险家如何利用星星来计时和导航。输入您当前的经度，即可获得精确的天体定位。

新变化

Visualize the orientation of the Big Dipper relative to Polaris — like a clock face in the night sky. See real-time rotation of the northern sky based on your local sidereal time. Animate the Big Dipper’s movement across the night for any date and time. Learn how ancient mariners and explorers used the stars to tell time and navigate.