观星台文／宫嵩涛观星台位于登封市东南１５公里告成镇。告成即古阳城，古代视为天下的中心。相传西周政治家周公姬旦曾在此“测土深，正日影，求得地中”。观星台南２０米处的“周公测景台”石表是唐开元十一年（公元７２３年）为纪念周公由天文官南宫说负责刻立。测景台... Observatory / Wen Tao Gong Tao Gong Observatory is located 15 km southeast of Dengfeng City, Chengcheng town. Gu Chengcheng ancient city, ancient as the world center. According to legend, the Western Zhou Dynasty politician Zhou Jidan once in this “deep soil test, is a shadow, find the ground.” Observatory Tainan 20 meters at the “Weeks measuring platform” stone table is Tang Kaiyuan eleven years (AD 723) in order to commemorate the week by the astronomical palace Nangong said is responsible for carving. Terraces ...