使用者: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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  清代渾儀（璣衡撫辰儀）
  Qing Dynasty's Armillary
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  象限儀(地平緯儀)
  Quadrant Altazimuth
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  赤道經緯儀（遠處）及紀限儀（近處）
  Equatorial Armilla and Sextant
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  黃道經緯儀
  Ecliptic Armilla
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  天體儀
  Celestial Globe
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  地平經儀
  Altazimuth
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  地平經緯儀
  Azimuth Theodolite
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  明代渾儀複製品
  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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  明代渾儀複製品
  another replica of Ming Dynasty's Armillary in the courtyard
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  簡儀
  simplified armilla
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  簡儀
  simplified armilla
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  正方案
  The Square Table