Reference numberPT/62/8/58
Previous numbersPT/62/8/9
TitlePhotograph, Lord Rosse's telescope at Birr Castle, Ireland by [Mary Parsons, Countess of Rosse?]
DescriptionThe great telescope seen from the south, showing the position of the telescope when a man enters the tube to fix the small speculum and remove the cover of the large mirror. The Earl of Rosse is standing in the telescope tube. A group of four other figures are on or in front of a mobile platform on rails. These include two of Rosse's children, Clere Parsons standing and Charles Algernon Parsons seated on the platform rail near two male observers. This view has been pasted onto a supporting card with three other photographic figures from the same plate. This monoscopic view from a stereoscopic photograph was used to produce the engraving that was published in William Parsons' paper as figure 7 from plate 24.

Subject: Scientific Instruments / Astronomy

Published in Philosophical Transactions as 'On the construction of specula of six-feet aperture; and a selection from the observations of nebulæ made with them'.

Received by the Royal Society on 5 June 1861. Read 20 June 1861.
Physical descriptionAlbumen print, mounted on card
Access statusOpen
Related materialDOI: 10.1098/rspl.1860.0078
DOI: 10.1098/rstl.1861.0029
Related records in the cataloguePT/62/8
URL descriptionDigital version available on The Royal Society Picture Library
Fellows associated with this archive
NA8084Parsons; William (1800 - 1867); 3rd Earl of Rosse1800 - 1867
NA3128Parsons; Sir; Charles Algernon (1854 - 1931); engineer1854 - 1931
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