Area of Crescent Calculator 对比 LSTclock: sidereal time clock 的使用情况和统计数据

LSTclock is an iOS/iPadOS/watchOS app to display the local sidereal time (LST) at the selected location(s). On iOS/iPadOS, it can also calculate the LST and the Julian Date for arbitrary date/time. The app contents (location list) can be synced between iPhone and paired Apple Watch(es).