用戶:Kallgan/Images/Beijing Ancient Observatory

• 
  the observatory, view from garden
• 
  the observatory
• 
  the observatory
• 
  courtyard view
• 
  清代渾儀（璣衡撫辰儀）
  Qing Dynasty's Armillary
• 
  象限儀(地平緯儀)
  Quadrant Altazimuth
• 
  赤道經緯儀（遠處）及紀限儀（近處）
  Equatorial Armilla and Sextant
• 
  黃道經緯儀
  Ecliptic Armilla
• 
  天體儀
  Celestial Globe
• 
  地平經儀
  Altazimuth
• 
  地平經緯儀
  Azimuth Theodolite
• 
  明代渾儀複製品
  a replica of Ming Dynasty's Armillary in the garden
• 
  an instrument to caculate midwinter date
• 
• 
  日晷
  a solarium made in 1790
• 
  a marble instrument to caculate equinox date
• 
  明代渾儀複製品
  another replica of Ming Dynasty's Armillary in the courtyard
• 
  簡儀
  simplified armilla
• 
  簡儀
  simplified armilla
• 
  正方案
  The Square Table