Beijing Ancient Observatory

The Beijing Ancient Observatory, built in 1442, was used during the Ming and Qing dynasties. The instruments at the site now were built with help from Jesuit missionaries in the 17th and 18th centuries.

中文：北京古观象台是明清两代和北洋政府时期的国家天文台。建于1442年，是世界上最古老的天文台之一。

Instruments

• 
  浑仪，1871年到1872年间拍摄
• 
  赤道经纬仪
  Equatorial Armilla
• 
  纪限仪
  Sextant
• 
  地平经纬仪
  Azimuth Theodolite
• 
  地平经仪
  Altazimuth
• 
  清代浑仪（玑衡抚辰仪）
  Qing Dynasty's Armillary Sphere
• 
  象限仪(地平纬仪)
  Quadrant Altazimuth
• 
  赤道经纬仪（远处）及纪限仪（近处）
  Equatorial Armilla and Sextant
• 
  黄道经纬仪
  Ecliptic Armilla
• 
  天体仪
  Celestial Globe
• 
  地平经仪
  Altazimuth
• 
  地平经纬仪
  Azimuth Theodolite
• 
  明代浑仪复制品
  a replica of Ming Dynasty's Armillary Sphere in the garden
• 
  an instrument to caculate midwinter date
• 
• 
  日晷
  a solarium made in 1790
• 
  a marble instrument to caculate equinox date
• 
  明代浑仪复制品
  another replica of Ming Dynasty's Armillary Sphere in the courtyard
• 
  简仪
  simplified armilla
• 
  简仪
  simplified armilla
• 
  正方案
  The Square Table

Buildings

• 
  layout
• 
  the observatory, view from garden
• 
• 
• 
  紫微殿
  courtyard view
• 
  courtyard view
• 
  From the back of the building - the instruments are visible on the roof

Other images to be uploaded to the Commons

• zh:Image:矶衡抚辰仪.jpg
• zh:Image:天体仪.jpg