单词 | astronomer |
释义 | astronomer (once / 914 pages) n A scientist who studies the objects in the sky, including planets, galaxies, black holes, and stars, is called an astronomer. These days, the terms astronomer and astrophysicist are used interchangeably, to talk about any physicist who specializes in celestial bodies and the forces that affect them. Astronomers use telescopes and cameras to observe the stars and other objects in the sky, and they often use complicated math to make predictions and solve puzzles about their movements and locations. The Greek root, astronomia, literally means "star arrangement." WORD FAMILYastronomer: astronomers+/astronomic: astronomically/astronomy: astronomer, astronomic, astronomical, astronomies USAGE EXAMPLESJan. 5 — “A Brief History of Dutch Astronomy,” a talk by astronomer Peter Teuben, at the University of Maryland at College Park’s observatory, 8 p.m. Washington Post(Dec 31, 2016) To settle the matter, they commissioned a survey and hired two Englishmen, Charles Mason, an astronomer, and Jeremiah Dixon, a surveyor. Washington Post(Dec 30, 2016) “This generation of detectors should be the last,” said astronomer Stacy McGaugh at Case Western Reserve University in Cleveland, Ohio. The Guardian(Dec 31, 2016) n a physicist who studies astronomy Syn|Exp|Hypo|Hyper stargazer, uranologist Al-Hasan ibn al-Haytham an Egyptian polymath (born in Iraq) whose research in geometry and optics was influential into the 17th century; established experiments as the norm of proof in physics (died in 1040) Anaximandera presocratic Greek philosopher and student of Thales who believed the universal substance to be infinity rather than something resembling ordinary objects (611-547 BC) Aristarchus of Samosan ancient Greek astronomer who was one of the first to propose a heliocentric theory of the universe (circa 270 BC) Friedrich Wilhelm BesselGerman mathematician and astronomer who made accurate measurements of stellar distances and who predicted the existence on an 8th planet (1784-1846) Nathaniel BowditchUnited States mathematician and astronomer noted for his works on navigation (1773-1838) Tycho BraheDanish astronomer whose observations of the planets provided the basis for Kepler's laws of planetary motion (1546-1601) Anders CelsiusSwedish astronomer who devised the centigrade thermometer (1701-1744) Nicolaus CopernicusPolish astronomer who produced a workable model of the solar system with the sun in the center (1473-1543) Sir Arthur Stanley EddingtonEnglish astronomer remembered for his popular elucidation of relativity theory (1882-1944) EratosthenesGreek mathematician and astronomer who estimated the circumference of the earth and the distances to the Moon and sun (276-194 BC) Galileo GalileiItalian astronomer and mathematician who was the first to use a telescope to study the stars; demonstrated that different weights descend at the same rate; perfected the refracting telescope that enabled him to make many discoveries (1564-1642) George Ellery HaleUnited States astronomer who discovered that sunspots are associated with strong magnetic fields (1868-1938) Asaph HallUnited States astronomer who discovered Phobos and Deimos (the two satellites of Mars) (1829-1907) Edmond HalleyEnglish astronomer who used Newton's laws of motion to predict the period of a comet (1656-1742) Sir Frederick William HerschelEnglish astronomer (born in Germany) who discovered infrared light and who catalogued the stars and discovered the planet Uranus (1738-1822) Sir John Frederick William HerschelEnglish astronomer (son of William Herschel) who extended the catalogue of stars to the southern hemisphere and did pioneering work in photography (1792-1871) HipparchusGreek astronomer and mathematician who discovered the precession of the equinoxes and made the first known star chart and is said to have invented trigonometry (second century BC) Sir William HugginsEnglish astronomer who pioneered spectroscopic analysis in astronomy and who discovered the red shift (1824-1910) HypatiaGreek philosopher and astronomer; she invented the astrolabe (370-415) Johannes KeplerGerman astronomer who first stated laws of planetary motion (1571-1630) Gerard Peter KuiperUnited States astronomer (born in the Netherlands) who studied the solar system and suggested in 1951 that there is a belt of comet-like debris at the edge of the solar system (1905-1973) Samuel Pierpoint LangleyUnited States astronomer and aviation pioneer who invented the bolometer and contributed to the design of early aircraft (1834-1906) Pierre Simon de LaplaceFrench mathematician and astronomer who formulated the nebular hypothesis concerning the origins of the solar system and who developed the theory of probability (1749-1827) Sir Alfred Charles Bernard LovellEnglish astronomer who pioneered radio astronomy (born in 1913) Percival LowellUnited States astronomer whose studies of Mars led him to conclude that Mars was inhabited (1855-1916) Maria MitchellUnited States astronomer who studied sunspots and nebulae (1818-1889) Johann MullerGerman mathematician and astronomer (1436-1476) Simon NewcombUnited States astronomer (1835-1909) Omar KhayyamPersian poet and mathematician and astronomer whose poetry was popularized by Edward Fitzgerald's translation (1050-1123) Jan Hendrix OortDutch astronomer who proved that the galaxy is rotating and proposed the existence of the Oort cloud (1900-1992) Benjamin PeirceUnited States mathematician and astronomer remembered for his studies of Uranus and Saturn and Neptune (1809-1880) Claudius PtolemaeusAlexandrian astronomer (of the 2nd century) who proposed a geocentric system of astronomy that was undisputed until the late Renaissance David RittenhouseUnited States astronomer said to have built the first telescope made in America; also the first director of the United States Mint (1732-1796) Henry Norris RussellUnited States astronomer who developed a theory of stellar evolution (1877-1957) Giovanni Virginio SchiaparelliItalian astronomer who first noted lines (which he called canals) on the surface of Mars (1835-1910) Harlow ShapleyUnited States astronomer (1885-1972) Willem de SitterDutch astronomer who calculated the size of the universe and suggested that it is expanding (1872-1934) Thales of Miletusa presocratic Greek philosopher and astronomer (who predicted an eclipse in 585 BC) who was said by Aristotle to be the founder of physical science; he held that all things originated in water (624-546 BC) Clyde William TombaughUnited States astronomer who discovered the planet Pluto (1906-1997) Sir Fred Hoylean English astrophysicist and advocate of the steady state theory of cosmology; described processes of nucleosynthesis inside stars (1915-2001) Edwin Powell HubbleUnited States astronomer who discovered that (as the universe expands) the speed with which nebulae recede increases with their distance from the observer (1889-1953) Georges Henri LemaitreBelgian cosmologist who proposed the big-bang theory of the origin of the universe (1894-1966) astrophysicist an astronomer who studies the physical properties of celestial bodies cosmologistan astronomer who studies the evolution and space-time relations of the universe physicist a scientist trained in physics |
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