George Willis Ritchey (December 31, 1864 – November 4, 1945) was an American optician and telescope maker and astronomer born at Tuppers Plains, Ohio...
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Ritchey may refer to: Ritchey, California Ritchey, Missouri George Willis Ritchey (1864–1945), American optician, telescope maker and astronomer Tom Ritchey...
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Ritchey–Chrétien telescope was invented in the early 1910s by American astronomer George Willis Ritchey and French astronomer Henri Chrétien. Ritchey...
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Ritchey is a small lunar impact crater named after the American astronomer George Willis Ritchey. The crater is situated to the east of Albategnius in...
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CinemaScope widescreen technique, and - the co-invention, with George Willis Ritchey, of the Ritchey–Chrétien telescope, an improved type of astronomical telescope...
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Reflecting telescope (section Ritchey–Chrétien)
length while having a short tube length. The Ritchey–Chrétien telescope, invented by George Willis Ritchey and Henri Chrétien in the early 1910s, is a...
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Cassegrain reflector (section Ritchey-Chrétien)
for wide field and photographic observations. It was invented by George Willis Ritchey and Henri Chrétien in the early 1910s. This design is very common...
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the second (and final) telescope made by famed optician, George Willis Ritchey. The Ritchey–Chrétien telescope design has since become the de facto optical...
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Riess (United States, 1969–) Fernand Rigaux (Belgium, 1905–1962) George Willis Ritchey (United States, 1864–1945) David Rittenhouse (United States, 1732–1796)...
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105″ south of the galactic core. Discovered by American optician George Willis Ritchey on 19 July 1917, it reached a peak visual magnitude of 13.6. Based...
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George Willis Ritchey image of what he called the Great Nebula in Cygnus (In modern times the Veil Nebula); taken with the two-foot reflecting telescope...
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Hale's previous 100-inch telescope was George Willis Ritchey, who intended the new telescope to be of Ritchey–Chrétien design. Compared to the usual parabolic...
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exhibited at the Paris 1900 Exposition. 1910s — George Willis Ritchey and Henri Chrétien co-invent the Ritchey-Chrétien telescope used in many, if not most...
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volumes contained chapters written by James Gilbert Baker, George Ellery Hale, George Willis Ritchey and others on topics ranging from lens grinding to monochromators...
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Isaac Newton Georg Simon Plössl Russell W. Porter Jesse Ramsden George Willis Ritchey Christoph Scheiner Bernhard Schmidt James Short See also Timeline...
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Antilles place name WGPSN Ritchey 28°48′S 51°00′W / 28.8°S 51.0°W / -28.8; -51.0 (Ritchey) 79.0 1973 George Willis Ritchey WGPSN Robert Sharp 4°10′S...
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Riemann (1826–1866) WGPSN Ritchey 11°08′S 8°29′E / 11.13°S 8.48°E / -11.13; 8.48 (Ritchey) 24.07 1935 George Willis Ritchey (1864–1945) WGPSN Rittenhouse...
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Giovanni Battista Riccioli[circular reference] Klaus Riedel George Willis Ritchey Carl Ritter George August Dietrich Ritter Ole Rømer James C. Ross Frank E...
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Country of work Regiomontanus 1436–1476 Germany / Italy / Hungary Georg Friedrich von Reichenbach 1772–1826 Germany George Willis Ritchey 1864–1945 US...
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Albert Abraham Michelson 1923 – Aymar de la Baume Pluvinel 1924 – George Willis Ritchey 1925 – Eugène Michel Antoniadi 1926 – Walter Sydney Adams 1927 –...
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Stanislas Chevalier 1920 – William Coblentz 1922 – Carl Størmer 1924 – George Willis Ritchey 1926 – Francisco Miranda da Costa Lobo 1928 – William Hammond Wright...
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Volkoff George W. Clark George W. Lewis George Weston (physicist) George Wetherill George Willis Ritchey George Yuri Rainich George Zweig Georges-Louis...
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storm at the time. Hoover's assistant, Lawrence Ritchey, was placed in charge of the investigation. Ritchey tried to chart what happened to the vessel between...
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George Ladd". Military Times. "Dean Samuel Laird". Military Times. "Wayne Willis Laird". Military Times. "Kenneth B. Lake". Military Times. "George Max...
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Hall, Bill Engvall, Kenneth Barry, Robert A. Cowan, Chris McCarty, Lee Ritchey, Lynette Walden, Robert Hibbard, Scott Campbell, Melanie Strange, Dave...
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Thomas Ritchey (D) Edson B. Olds (D) William D. Lindsley (D) Harvey H. Johnson (D) William R. Sapp (W) Edward Ball (W) Wilson Shannon (D) George Bliss...
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Claude Ritchey Todd Ritchie Jim Ritz Luis Rivas Carlos Rivera Johnny Rizzo Fred Roat Curt Roberts Dave Roberts (1B/OF) Dave Roberts (P) Willis Roberts...
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Texas. † Co-champions Bob Shelton (1923–1928) Gene White (1929–1936) Red Willis (1937–1940) Maurice A. Baumgarten (1941) No team (1942–1945) Bill Pierce...
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States U.S. Navy 5 Vincent A. Rieger United States U.S. Navy 5 Andrew Ritchey United States U.S. Army Air Forces 5 Newell O. Roberts United States...
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in the 101st United States Congress. They coincided with the election of George H. W. Bush as president. Although Bush won with a strong majority, his Republican...
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