雙語科技百科(天文) 第7期:登封觀星臺
Dengfeng Astro Observatory
Dengfeng Astro Observatory is located at Gaocheng Town，15 kilometers southeast of Denpfenq City，Henan is the most ancient as-tronomical observatory extant in China.
登封觀星臺位於河南省登封市城東南巧千米的告城鎮，是中國現存最古老的天文臺。Performing the functions of measuring the shadow cast by the sun，observing celestial bodies，and telling time，the Astro Ob-servatory is an ancient scientific heritage with significant research value.
該觀星臺具有測影、觀星和記時等功能，是具有重要研究價值的古代科學遺產。
It was built in the 13th year of the Emperor Zhiyuan(AD 1276)，(in the Yuan)by Guo Shou-jing and Wang Xun as directed by the emperor, and was among the 27 astronomi-cal observatories in the country at that time.
該臺爲至元十三年(1276年)郭守敬、王詢等人奉救所建，是當時全國修建的27個天文觀測站之一。The observatory, of masonry con-strudion，consists of the platform body and the stone gnomon(commonly named as heaven measuring ruler) a square plane，the observatory is narrow in the top and large at the bottom. It is 12. 62m in overall the north of the observatory are two symmetrical step entrances for obser-vation.
臺爲磚石混合結構，由臺身和石圭(俗稱量天尺)兩部分組成。臺的平面呈方形，臺體上小下大，通高12. 62米。臺北設有兩個對稱的踏道口可以登臺眺望。The center of the northern wall is built into a hollow groove that is perforated through from top to bot-tom,so the higher gnomon at the groove’s straight wall and the stone gnomon at the bottom constitute a se-ries of gnomon apparatus for measur-ing the length of the shadow cast by the sun.
北壁中間砌成一個上下直通的凹形直槽，凹槽直壁與橫樑組成的高表與臺下石圭形成一組測量日影長度的圭表裝置。The stone gnomon at the bottom of the groove is connected with 36 blocks of blue stone from south to north，and is 31 .2m in length and 0. 58m in width. The gnomon is canned with two parallel two-way watercourses. To the south of the watercourses is a suction sump，and to the north a discharge sump. Each sump has scales for measuring the levelness.
槽底石圭自南向北由36方青石連接而成，長31.2米，寬0. 58米，上刻兩條平行雙股水道。水道南端有注水池，北端有泄水池，池中有刻度，用以測量水準。
