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yeldahtron: The Observatory Platform
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yeldahtron: Ascending the steps
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yeldahtron: Ascending the steps
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yeldahtron: New Armilla
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yeldahtron: The Celestial Globe
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yeldahtron: Altazimuth and Ecliptic Armilla
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yeldahtron: Azimuth Theodolite
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yeldahtron: Sextant
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yeldahtron: Equatorial Armilla
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yeldahtron: Sextant
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yeldahtron: The Quadrant
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yeldahtron: Nancy with Dragon
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yeldahtron: A replica amillary?
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yeldahtron: Nancy and 玲
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yeldahtron: Planetarium
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yeldahtron: Planetarium
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yeldahtron: Parkview
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yeldahtron: Gnomon
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yeldahtron: Gnomon
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yeldahtron: Equatorial sundial
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yeldahtron: Equatorial sundial
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yeldahtron: Solar transit
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yeldahtron: Solar transit
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yeldahtron: Solar transit
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yeldahtron: Solar transit
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yeldahtron: Zu Chongzhi
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yeldahtron: Zu Chongzhi
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yeldahtron: Replica instruments
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yeldahtron: Dragon power
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yeldahtron: Museum courtyard