Polaris Clock

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關於這個應用程式

直觀地查看北斗七星相對於北極星的方位－就像夜空中的鐘面一樣。根據您當地的恆星時，請查看北方天空的即時旋轉。了解古代水手和探險家如何利用星星來計時和導航。輸入您目前的經度，即可獲得精確的天體定位。

新功能

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.