The Observatory and its Instruments
Construction of the Astrological Commission’s headquarters and observatory began in 1279. The compound measured roughly 123m × 92m, with a main building 17m tall. It occupied, more or less, the site of today’s Chinese Academy of Social Sciences on the north side of Jianguomennei Avenue (Jianguomennei dajie 建国门内大街), within a long walk of the Forbidden Palace. The southeast corner of its walled compound fell close to the present-day Jianguomen subway entrance. Not a trace of the observatory remains.
KeywordsSimplify Instrument Celestial Pole Observational Instrument Large Instrument Purple Mountain Observatory
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