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De Veneris ac Solis congressu. Observatio habita in astronomica specula Bononiensis Scientiarum Instituti die 5 Junii 1761. The Bologna observations were published on the proceedings of the Science Academy (Commentarii dell?Accademia delle Scienze di Bologna) in 1767 and were reported by Nathaniel Bliss on the Philosophica... | Diagram of the 1761 transit by James Ferguson This is a detail from a large folding plate in James Ferguson's Astronomy explained upon Sir Isaac Newton?s Principles. First published in 1756, Ferguson subsequently added material on the 1761... | Dip Circle Dip Circle, made in Washington, D.C. by Edward Kahler ca. 1874. Transferred from the U.S. Naval Observatory. This is one of eight identical Dip Circles that Edward Kahler made for the American expe... |
Eight inch refractor made by Grubb and purchased by Yale in 1882 to view transit of Venus The Grubb refractor was financed by EM Reed so the telescope has long been referred to as "The Reed Telescope." The telescope was used for photographing the sun during the 1882 transit of Venus. The G... | Eustachio Zanotti (1709 - 1782) The 1761 Venus transit was observed in Bologna by Eustachio Zanotti, director of the Observatory, founded in 1726 in the buiding of newborn Academy of Sciences. The Observatory tower today hosts the M... | French medal commemorating the 1874 transit A medal was struck to commemorate the French expeditions to observe the transit in 1874. The medal shows Urania, the muse of astronomy, looking up to see the female figure of Venus meeting the Sun god... |
Heliometer Brass Heliometer. Made by John & Peter Dollond of London, ca 1758, and shipped to Harvard by Joseph Mico in 1765. | Heliometer by G & S Merz, used in the 1874 Dutch expedition on Reunion The financers of the Dutch expedition for the 1874 transit on Reunion bought this heliometer especially for this occassion. After the expedition the heliometer was donated to the Leiden Observatory wh... | Heliometer by Utzschneider & Fraunhofer, used by Auwers for the 1874 transit and by Schrader and Clauss for the 1882 transitDeutsches Museum Inv.Nr. 70.440 Sign.: Utzschneider und Fraunhofer Benedictbeuern According to signature constructed before 1819. L: 600mm; B: 600mm; H: 1500mm Given to the Deutsches Museum in ... |
