alb4003310

William Herschel's reflecting telescope of 40 ft (12 m) focal length, 1789 (1807). Artist: Unknown

William Herschel's reflecting telescope of 40 ft (12 m) focal length, 1789 (1807). Built by the German-born English astronomer, William Herschel (1738-1822), in the grounds of his home in Slough, Berkshire, this instrument was the largest in the world, with a 4 ft (1.2 m) mirror. Herschel made observations with this telescope, including the discovery of two new moons of Saturn on the first night he used it, but made more use of a smaller 18 inch/46 cm instrument. From The Edinburgh Encyclopaedia. (Edinburgh, 1807-1829).

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Titre: William Herschel's reflecting telescope of 40 ft (12 m) focal length, 1789 (1807). Artist: Unknown

Légende: Voir la traduction automatique
William Herschel's reflecting telescope of 40 ft (12 m) focal length, 1789 (1807). Built by the German-born English astronomer, William Herschel (1738-1822), in the grounds of his home in Slough, Berkshire, this instrument was the largest in the world, with a 4 ft (1.2 m) mirror. Herschel made observations with this telescope, including the discovery of two new moons of Saturn on the first night he used it, but made more use of a smaller 18 inch/46 cm instrument. From The Edinburgh Encyclopaedia. (Edinburgh, 1807-1829).

Personnalités: HERSCHEL

Crédit: Album / Oxford Science Archive / Heritage Images

Autorisations: ? Autorisation de modèle: Non - ? Autorisation de propriété: Non
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Taille de l'image: 3853 × 4533 px | 50.0 MB

Taille d'impression: 32.6 × 38.4 cm | 1516.9 × 1784.6 in (300 dpi)

Mots clés: ANGLETERRE • ASTRONOMIE • HERSCHEL • MONOCHROME • NOIR ET BLANC • SCIENCE: ASTRONOMIE • TECHNOLOGIE • TELESCOPE A REFLECTEUR