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Lettre de l'Université d'Oxford à Jan Heweliusz, Oxford, 19 novembre 1650
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Harvard Mining School. Plat of the Observatory Grounds of Harvard University, surveyed October 1869 (titre original)
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Lettre de Jan Heweliusz à l'Université d'Oxford, Gdansk, 24 avril 1679
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Lettre de l'Université de Cambridge à Jan Heweliusz, Cambridge, 17 décembre 1650
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Lettre de l'Université de Cambridge à Jan Heweliusz, Cambridge, 28 février 1668
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Lettre de l'Université de Cambridge à Jan Heweliusz, Cambridge, 17 décembre 1672
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Double Slide Plate-holder [Leander Mac Cormick Observatory, University of Virginia, 1921] (titre original)
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Photographic map of the normal solar spectrum made with the concave grating by prof. H.A. Rowland, Johns Hopkins University. 2nd series, 1888. (titre original)
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Vue de la coupole (titre forgé)
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Lettre de Jan Heweliusz à l'Université de Cambridge, Gdansk, 24 avril 1679
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Lettre de John Wallis à Jan Heweliusz, Oxford, 29 janvier 1654
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Lettre de Benedikt Figk à Jan Heweliusz, Oxford, 31 décembre 1660
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Lettre de Benedikt Figk à Jan Heweliusz, Oxford, 5 septembre 1660
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Lettre de John Wallis à Jan Heweliusz, Oxford, 5 avril 1664
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Lettre de John Fell à Jan Heweliusz, Oxford, 12 novembre 1668
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Lettre de John Wallis à Jan Heweliusz, Oxford, 8 juillet 1679
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Lettre de John Wallis à Jan Heweliusz, Oxford, 11 août 1685
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Lettre de George Costard à Joseph-Nicolas Delisle, Oxford, 25 mai 1752
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Lettre de Joseph Willard à Cassini IV, Harvard University in Cambridge (Mass.) le 29 décembre 1788
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Photographs of the Total Eclipse of the Sun, August 19th, 1887, taken at Yomeiji-yama, Echigo, Japan, by M. Sugiyama, the observer of the Tokio Observatory, under the direction of I. Arai, director of the Observatory ans the Chief of the Expedition (titre original)
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Observatoire de Rio de Janeiro : Time-keepers ; Meridian Circle by G. Heyde ; Maincka Sismograph [400 kgs] ; Central Office ; General view of the Observatory grounds ; equatorial telescope 32 cm by Cooke [focal length 467 cm] ; Zenith Telescop […] & Instrument of variation of latitude ; Astrographical Casmeras of the Great refractor Cooke (titre original)
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Side View of driving clock of astro-photo Telescope at Sydney (titre original)
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Front View of driving clock of astro-photo Telescope at Sydney (titre original)
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Lettre de H. Parker à Cassini III, Admiralty le 24 juin 1784
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Photograph of the Corona, taken by Prof. Henry Draper, M.D. during the total eclipse of July 29th 1878 (titre original)
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Saturn, on the 15th of November 1852, from the drawings of W. S. Jacob, Esq. H.E.I.C. Astronomer, with the Madras Equatorial (titre original)
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« Belvedere », the summer-house of Queen Anna in which Tycho Brahe established his provisory observatory at the end of 1600 and where he made some observations [until 1601] (titre original)
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The moon and the condition and configurations of its surface
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The moon and the condition and configurations of its surface
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The moon and the condition and configurations of its surface
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The moon and the condition and configurations of its surface
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Interior of the Equatorial Room of Professor Henry Draper’s Observatory at Hastings on Hudson, near New York […] showing the 28 inch Silvered Glass Reflector, the 12 inch Achromatic, and the 5 inch Finder (titre original)
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Conférence "The legacy of Jean-Louis Steinberg (1922-2016)"
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Symposium "GAIA : at the frontiers of Atrometry"
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Conférence internationale "In the Spirit of Bernard LYOT 2010"
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Transit of Mercury, November 5 1868 (titre original)
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History of my youth
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Mid-air catch of discoverer xVII capsule […] (titre original)
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Observatoire de Tokyo [Japon]. Détail du PZT [tête rotative]. (titre forgé)
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Vue d'ensemble de l'Atlas of sky overlay maps for the Palomar sky survey (1981) (titre forgé)
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The Great Equatorial Telescope of Lick Observatory (titre original)
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Lick Observatory Views : Lick Avenue, A Bit of Landscape (titre original)
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Popular lectures on astronomy delivered at the Royal Observatory of Paris
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Observatoire du Cap. Zenith telescope in process of reversion (titre original)
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Lick Observatory : Elevating Floor of Great Dome [view beneath] (titre original)
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Across the Hills and Valleys west of Mt. Hamilton [Lick Observatory] (titre original)
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Lick Observatory : General View of Observatory, Peak and Buildings (titre original)
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Saturn as seen with a newtonian equatorial of thirteen inches aperture, March 27th and 29th 1856 (titre original)
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