Vienna University Observatory

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  Vienna University Observatory
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  Vienna University Observatory
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  Vienna University Observatory
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  Vienna University Observatory, Drawing from 1878
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  Vienna University Observatory, Drawing from 1888
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  Great Refractor
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  Great Refractor
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  Great Refractor
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  Great Refractor
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  Great Refractor
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  Great Refractor
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  Great Refractor, tracking system
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  Small Radio Telescope (SRT)
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  Small Radio Telescope (SRT)
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  Small Radio Telescope (SRT)
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  vienna little telescope (vlt)
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  vienna little telescope (vlt)
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  vienna little telescope (vlt)
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  vienna little telescope (vlt)
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  125th anniversary
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  anniversary - entry hall
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  hall around the Great Refractor
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  Peuerbach: "Theoricae novae planetarum" (1473)
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  Marinoni: "De astronomica specula domestica et organico" (1745)
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  Hell: "Observatio transitus Veneris ante discum Solis " (1770)