Credit: © The Royal Society
    Image number: RS.9088
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    Lord Rosse's telescope at Birr Castle, Ireland

    ca. 1861
    Countess Mary of Rosse (1813 - 1885, British) , Photographer
    Object type
    Archive reference number
    height (print): 139mm
    width (print): 119mm
    height (mount): 283mm
    width (mount): 193mm
    Content object
    Unused illustration for the paper "On the construction of specula of six-feet aperture; and a selection from the observations of nebulae made with them", by William Parsons, 3rd Earl of Rosse, Philosophical Transactions of the Royal Society, volume 151 (1861) pp.681-746. Study of the crane carrying the eastern counterpoise of the great telescope, similar to that used to produce figure 9, plate 24, but angled slightly differently. The image shows the guide wheel, pulley system and other features: to the right of the photograph the main tube of the telescope is just visible, almost at zenith.
    Object history
    This photograph was supplied for reproduction in the journal Philosophical Transactions of the Royal Society.
    Associated place
    <The World>
       > Europe
          > Ireland
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