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ASTRONOMICAL SOCIETY OF SOUTHERN AFRICA
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| sections > historical > expeditions > arc of the meridian |
| Arc of the Meridian Photo Gallery: Expedition |
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Return to Arc of the Meridian main page For
more visual material on the Arc of the Meridian Project: Archaeological
Excavations. |
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La
Caille's map of his triangulation for measuring an arc of the Meridian.
From his Journal Historique, 1763.
Courtesy of South African Library. Source: Moore |
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Measurement
of the base line on the Grand Parade in Cape Town, December 1837.
Drawing by Charles Piazzi Smyth entitled "a caricature". Courtesy South African Archives. Source: Moore: Warner - Smyth; Evans |
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The
apparatus employed in the Measurement of the Base Line. Above left in
the drawing the Royal Observatory at the Cape of Good Hope is visible.
Drawing by Smythe. Courtesy Royal Greenwich Observatory. Source: Warner - Smyth |
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"Modus
Operandi"
Courtesy Royal Greenwich Observatory. Source: Warner - Smyth |
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Director Historical Section: Chris de Coning - siriusa@absamail.co.za Webmaster: Christian Hettlage - webmaster@assa.saao.ac.za |