Definition of astronomer in English: astronomer
noun An expert in or student of astronomy.
Example sentences
‘As time goes by, astronomers have found planets in larger and larger orbits.’ ‘The author was the astronomer Edmond Halley, who is far better known today for having a famous comet named after him.’ ‘The great Danish astronomer Tycho Brahe observed a supernova in 1572.’ ‘Wilczynski began his research career as a mathematical astronomer.’ ‘Few astronomers have made so many important contributions to so many different fields in astronomy.’ ‘Until 10 years ago, most astronomers did not believe stardust could enter the Solar System.’ ‘Kamalakara was an Indian astronomer and mathematician who came from a family of famous astronomers.’ ‘A team of international astronomers has found five new moons orbiting Neptune.’ ‘Galileo wrote to astronomers in other cities and compared their observations with his own.’ ‘Titania was discovered in 1787 by the astronomer William Herschel.’ ‘We credit the idea that the Earth and other planets orbit the Sun to the medieval Polish astronomer Nicolaus Copernicus.’ ‘The Titan probe was named Huygens in honour of the Dutch astronomer who discovered Titan in 1655.’ ‘The tools are also helping astronomers measure the rate of birth of stars in extremely red and distant galaxies.’ ‘Such tenets never held back the great Arab astronomers and mathematicians of the Middle Ages.’ ‘Here, Hubble astronomers have uncovered, for the first time, a population of infant stars.’ ‘John Herschel was the son of William Herschel, the astronomer who discovered Uranus.’ ‘Dozens of astronomers came to see the eclipse, but there were thousands and thousands of people outside to watch it.’ ‘These galaxies are so young that astronomers can still see a flurry of stars forming within them.’ ‘This makes it the most distant extrasolar planet detected by astronomers to date.’ ‘To overcome this problem, the astronomers devised a new and highly efficient strategy.’ ‘Most newly discovered comets seem to originate from an area in space known as the Oort cloud, named after Dutch astronomer Jan Oort.’