User:Kallgan/Images/Beijing Ancient Observatory

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