
This image from an original glass plate negative held in the Powerhouse Museum Collection shows observation camp set up in the Blue Mountains for the 1874 transit of Venus. This was an event of great significance for scientists and special observation posts like this were set up around the globe. This camp was on the property of A. Fairfax in Woodford in the Blue Mountains. Present at this site were seven observers P. F. Adams Surveyor-General, G. D. Hirst a well known amateur astronomer, Mr. Vessy of the Trigonomical Survey, Mr. Du Faur of the Survey Department, J. Bischoff the photographer and two unnamed carpenters.
The special telescope (photoheliograph) operated by G. D. Hirst was the same as those used by five other observatories which were part of the Royal Observatory Transit of Venus program. The others went to Honolulu, Mokkatam, Rodriguez, Kereguelen and Burnham. The photoheliograph was made by J. H. Dallmeyer to accommodate a special piece of photographic apparatus designed by Janssen and de la Rue which took 6.5 inch circular photographic plates.
Photography by Joseph Bischoff
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Post by Geoff Barker, Assistant Curator












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