10 results
Dom Pedro II Observatory, Saint Thomas Island, Danish Possession in the Antilles: North Face of the Three Pavillions of the Observatory
This photograph is contained in an album that commemorates the participation of Brazil in the international effort to track the transit of Venus in 1882. This involved the establishment by the Imperial Observatory of an observatory, named after Emperor Dom Pedro II (1825-91), on the island of Saint Thomas in the Danish West Indies (present-day U.S. Virgin Islands). The transit of Venus is a rare astronomical event that occurs when Venus passes between the Earth and the sun, becoming visible in daylight against the solar disk. The transits occur ...
Contributed by
National Library of Brazil
Dom Pedro II Observatory, Saint Thomas Island, Danish Possession in the Antilles: Overview of the Observatory from the Northeast with the Three Pavilions and the Collimators of the Meridian Circle Telescope
This photograph is contained in an album that commemorates the participation of Brazil in the international effort to track the transit of Venus in 1882. This involved the establishment by the Imperial Observatory of an observatory, named after Emperor Dom Pedro II (1825-91), on the island of Saint Thomas in the Danish West Indies (present-day U.S. Virgin Islands). The transit of Venus is a rare astronomical event that occurs when Venus passes between the Earth and the sun, becoming visible in daylight against the solar disk. The transits occur ...
Contributed by
National Library of Brazil
Dom Pedro II Observatory, Saint Thomas Island, Danish Possession in the Antilles: Pavilion of the Equatorial Telescope of the First Lieutenant Índio do Brasil. Main Central Pavillion of the Meridian Circle Telescope and Large Equatorial Telescope of the Barão de Teffé. Pavillion of the Equatorial Telescope of the Lieutenant Commander Calheiros da Graça. View from the Southeast, from the Hillside
This photograph is contained in an album that commemorates the participation of Brazil in the international effort to track the transit of Venus in 1882. This involved the establishment by the Imperial Observatory of an observatory, named after Emperor Dom Pedro II (1825-91), on the island of Saint Thomas in the Danish West Indies (present-day U.S. Virgin Islands). The transit of Venus is a rare astronomical event that occurs when Venus passes between the Earth and the sun, becoming visible in daylight against the solar disk. The transits occur ...
Contributed by
National Library of Brazil
Dom Pedro II Observatory, Saint Thomas Island, Danish Possession in the Antilles: Interior View of the East Part of the Main Central Pavillion with the Meridian Circle Telescope, Sidereal Pendulum and the Electric Chronograph
This photograph is contained in an album that commemorates the participation of Brazil in the international effort to track the transit of Venus in 1882. This involved the establishment by the Imperial Observatory of an observatory, named after Emperor Dom Pedro II (1825-91), on the island of Saint Thomas in the Danish West Indies (present-day U.S. Virgin Islands). The transit of Venus is a rare astronomical event that occurs when Venus passes between the Earth and the sun, becoming visible in daylight against the solar disk. The transits occur ...
Contributed by
National Library of Brazil
Dom Pedro II Observatory, Saint Thomas Island, Danish Possession in the Antilles: Interior View of the Western Part of the Main Central Pavillion with the Equatorial Telescope of the Barão de Teffé
This photograph is contained in an album that commemorates the participation of Brazil in the international effort to track the transit of Venus in 1882. This involved the establishment by the Imperial Observatory of an observatory, named after Emperor Dom Pedro II (1825-91), on the island of Saint Thomas in the Danish West Indies (present-day U.S. Virgin Islands). The transit of Venus is a rare astronomical event that occurs when Venus passes between the Earth and the sun, becoming visible in daylight against the solar disk. The transits occur ...
Contributed by
National Library of Brazil
Dom Pedro II Observatory, Saint Thomas Island, Danish Possession in the Antilles: Interior View of the East Pavillion with the Equatorial Telescope of the Lieutenant Commander Calheiros da Graça
This photograph is contained in an album that commemorates the participation of Brazil in the international effort to track the transit of Venus in 1882. This involved the establishment by the Imperial Observatory of an observatory, named after Emperor Dom Pedro II (1825-91), on the island of Saint Thomas in the Danish West Indies (present-day U.S. Virgin Islands). The transit of Venus is a rare astronomical event that occurs when Venus passes between the Earth and the sun, becoming visible in daylight against the solar disk. The transits occur ...
Contributed by
National Library of Brazil
Dom Pedro II Observatory, Saint Thomas Island, Danish Possession in the Antilles: Interior View of the West Pavillion with the Equatorial Telescope of the First Lieutenant Índio do Brasil
This photograph is contained in an album that commemorates the participation of Brazil in the international effort to track the transit of Venus in 1882. This involved the establishment by the Imperial Observatory of an observatory, named after Emperor Dom Pedro II (1825-91), on the island of Saint Thomas in the Danish West Indies (present-day U.S. Virgin Islands). The transit of Venus is a rare astronomical event that occurs when Venus passes between the Earth and the sun, becoming visible in daylight against the solar disk. The transits occur ...
Contributed by
National Library of Brazil
The Observatory Showing Armillary Sphere and Other Astronomical Instruments, Beijing, 1874
In 1874-75, the Russian government sent a research and trading mission to China to seek out new overland routes to the Chinese market, report on prospects for increased commerce and locations for consulates and factories, and gather information about the Dungan Revolt then raging in parts of western China. Led by Lieutenant Colonel Iulian A. Sosnovskii of the army General Staff, the nine-man mission included a topographer, Captain Matusovskii; a scientific officer, Dr. Pavel Iakovlevich Piasetskii; Chinese and Russian interpreters; three non-commissioned Cossack soldiers; and the mission photographer, Adolf Erazmovich ...
Contributed by
National Library of Brazil
The Removal of the Veil in the Description of the Quadrants
This manuscript in 12 folios is a mid-18th-century copy of Kašf al-Qinā‘ fī rasm al-arbā‘ (The removal of the veil in the description of the quadrants), a treatise devoted to the description of the astronomical instrument known as the quadrant. The treatise originally was compiled by Muḥammad ibn Muḥammad Ibn al-Aṭṭar in the first half of the 15th century on the basis of the teachings of his predecessors, al-Mājidī and Nūr al-Dīn al-Naqāš. The treatise is a precious source for understanding the degree of refinement reached by astronomical instrument making ...
Contributed by
Library of Congress
Instruments for the Restoration of Astronomy
Tycho Brahe (1546–1601) was a Danish astronomer who built the best observatory in Europe and set a new standard for accurate celestial observations in the era before the invention of the telescope. His noble birth enabled him to pursue his true interests in the humanities and the sciences, particularly astronomy. He became adept at designing scientific instruments and making observations during his early travels in Europe. Upon his return to Denmark he won favor with King Frederick II, who provided him with monetary support to continue his astronomical researches ...
Contributed by
Smithsonian Institution