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Galileo di Vincenzo Bonaiuti de' Galilei (15 February 1564 – 8 January 1642), commonly referred to as Galileo Galilei (/ ˌ ɡ æ l ɪ ˈ l eɪ oʊ ˌ ɡ æ l ɪ ˈ l eɪ /, US also / ˌ ɡ æ l ɪ ˈ l iː oʊ-/; Italian: [ɡaliˈlɛːo ɡaliˈlɛːi]) or mononymously as Galileo, was an Italian [a] astronomer, physicist and engineer, sometimes described as a polymath.
Galileo's instrument was the first to be given the name "telescope". The name was invented by the Greek poet/theologian Giovanni Demisiani at a banquet held on April 14, 1611, by Prince Federico Cesi to make Galileo Galilei a member of the Accademia dei Lincei. [42]
The Galileo affair (Italian: il processo a Galileo Galilei) began around 1610, [1] and culminated with the trial and condemnation of Galileo Galilei by the Roman Catholic Inquisition in 1633. Galileo was prosecuted for holding as true the doctrine of heliocentrism , the astronomical model in which the Earth and planets revolve around the Sun at ...
The Sidereal messenger of Galileo Galilei, and a part of the preface to Kepler's Dioptrics. Waterloo Place, London: Oxford and Cambridge, January 1880. 148 pp. ISBN 9781151499646. Stillman Drake. Discoveries and Opinions of Galileo, includes translation of Galileo's Sidereus Nuncius. Doubleday: Anchor, 1957. 320 pp. ISBN 978-0385092395.
Galileo Galilei, the discoverer of the four moons. As a result of improvements that Galileo Galilei made to the telescope, with a magnifying capability of 20×, [5] he was able to see celestial bodies more distinctly than was previously possible. This allowed Galileo to observe in either December 1609 or January 1610 what came to be known as ...
The telescope saw first light in 1998 and is named after the Italian Renaissance astronomer Galileo Galilei. Observations at the TNG can be proposed through the Italian Time Allocation Committee (TAC) which assigns, based on the scientific merit of the proposals, 75% of the available time.
It is meant to be an inexpensive means by which millions of people can view the same things seen by Galileo Galilei, such as the craters of Earth's Moon, four of Jupiter's moons, and the Pleiades. The small telescope has an aperture of 50 mm (2.0 in) and a relatively long focal length of 500 mm, for a focal ratio of f/10. [2]
The celatone was a device invented by Galileo Galilei to observe Jupiter's moons with the purpose of finding longitude on Earth. It took the form of a piece of headgear with a telescope taking the place of an eyehole.