【實用生產應用app】Astronomers Time|最夯免費app-綠色工廠好玩App

Astronomers Time is like time-keeping system astronomers use to keep track of the direction to point their telescopes to view a given star in the night sky. Four systems of time are presented: local sidereal time, local time, Greenwich sidereal time, and Greenwich local time. Includes Fast app resume and live tile displays last time you used the Astronomers Time app.