the Royal Observatory
/ðə ˌrɔɪəl əbˈzɜːvətri/
/ðə ˌrɔɪəl əbˈzɜːrvətɔːri/
(also the Royal Greenwich Observatory)
- an observatory (= a building from which to study the stars, weather, etc.) at Greenwich, London. Its original purpose was to study the stars in order to help sailors find their position at sea, and its work led to the widespread use of Greenwich Mean Time and the Greenwich Meridian, an imaginary line running through Greenwich from north to south around the earth. International time zones (= regions) are still measured from the Greenwich Meridian. The building is now part of the National Maritime Museum.
皇家天文台：伦敦格林威治的天文台（用于研究星星，天气等的建筑物）。它的最初目的是研究星星，以帮助水手找到他们在海上的位置，其工作导致格林威治标准时间和格林威治子午线的广泛使用，这是一条假想性的路线，从格林威治到地球的北到南。国际时区仍从格林威治子午线开始测量。该建筑现已成为国家海事博物馆的一部分。