Great refractor refers to a large telescope with a lens, usually the largest refractor at an observatory with an equatorial mount. The preeminence and...

include the James Lick telescope (91.4), Potsdam Great Refractor (80+50 cm), and the Greenwich 28 inch refractor (71.1 cm). Institutionally it was part of the...

A refracting telescope (also called a refractor) is a type of optical telescope that uses a lens as its objective to form an image (also referred to a...

Observatory in 1926. The Meudon Great refractor is the third largest astronomical refractor of its type in the world. The Meudon refractor is located in the Grande...

Potsdam Great Refractor (Große Refraktor) is an historic astronomical telescope in an observatory in Potsdam, Brandenburg, Germany. Completed in 1899...

"Harvard College Observatory: Great Refractor". www.cfa.harvard.edu. 4 October 2023. "Telescope: Harvard 15-inch Refractor". amazing-space.stsci.edu. "Perth...

main dome houses a 40-in aperture (102 cm) doublet lens refracting telescope, the largest refractor ever successfully used for astronomical observation....

surfaces from the National Observatory of Athens, Pic du Midi, and Meudon Great Refractor. Jean is responsible for creating the most highly visual map of Mars...

"Harvard College Observatory: Great Refractor". www.cfa.harvard.edu. Retrieved September 8, 2019. "Fitz/Clark 12-in Refractor". The General History of Astronomy...

and instrument maker, whose lenses played a part in the race of the great refractor telescopes in the first half of the 19th century. At first Cauchoix...

an observatory in Berlin-Treptow. It houses the Großer Refraktor (Great Refractor), which is the longest pointable telescope in the world. It is also...

fourth largest in the World. The Observatory also has an old style Great Refractor (a Großen Refraktor), a long telescope with a lens (60 cm/~23.6 in...

the Harvard College Observatory. HCO's first telescope, the 15-inch Great Refractor, was installed in 1847. That telescope was the largest in the United...

perform checks of Einstein's theory of General Relativity; and the Great Refractor of Potsdam, which today belong to the Astrophysical Institute Potsdam...

12.8 inch aperture refractor at the same location. The 12.8 inch was moved to be a guide telescope for the Thompson 26-inch refractor. The mounting dates...

Paris inch is the lens measurement of the first great refractor telescope, the Dorpat Great Refractor, also known as the Fraunhofer 9-inch. The 9-Paris...

Adams Whipple used the Great Refractor to produce the first clear Daguerrotypes of the Moon (winning them an award at the 1851 Great Exhibition in London)...

Refracting telescopes, with lenses, especially achromatic doublets, rather than mirrors were popular in the 19th century (see also great refractor)....

west of Berlin, though the Einstein Tower solar observatory and the great refractor telescope on Telegrafenberg in Potsdam belong to the AIP. The key topics...

cm (~23.6 inch) aperture Great Refractor by Reposold and Steinheil (Lenses). One unique feature of the Hamburg Great Refractor is an iris diaphragm that...

a limited basis. Also called the "Great Lick Refractor" or simply "Lick Refractor", it was the largest refracting telescope in the world until 1897,...

releases have confirmation of a Refractor on the back of the card in the form of either an R or the word 'Refractor' printed, usually, beside or beneath...

the Yerkes refractor (1897) with an aperture of 40 in (100 cm). Hence the 1890s marked the high point of the great refractors era. "Refracting Telescopes"...

on July 16 and 17, 1850 with Harvard College Observatory's 15 inch Great refractor. In 1863 the English chemist William Allen Miller and English amateur...

1880s). In the records for the largest refracting telescopes, all three were outperformed by the 91 cm (36 in) refractor installed at the Lick Observatory...

of Berlin. The exposition featured one of the largest and longest Great refractors up-to that time, and it was preserved after the exposition and survived...

Observeratory, provided him with access to the Grande Lunette (83-cm Great Refractor) He became a highly reputed observer of Mars, and at first supported...

January 31, 1862, while testing a new 18.5-inch (470 mm) aperture great refractor telescope in Cambridgeport, Massachusetts, Clark made the first ever...

fair was followed by other national exhibitions in Europe. In 1851, the "Great Exhibition of the Works of Industry of All Nations" was held in the Crystal...

capitalize on Voyager's observations. 1904: Astronomers using the Potsdam Great Refractor with a spectrograph find evidence of the interstellar medium while...