Definition of “astronomer” - English Dictionary

british dictionary

“astronomer” in British English

See all translations

astronomernoun [ C ]

uk /əˈstrɒn.ə.mər/ us /əˈstrɑː.nə.mɚ/

Examples

  • Astronomers call it mass transfer, and it happens when one star pulls away the mass of the second star.
  • Astronomers, the scientists who study space and planets, decided that Pluto was too small and too far away from our sun to be called a planet.
  • Davidson, an astronomer, wanted to see an eclipse.
  • Herschel, a British astronomer born in Germany in 1738, spent hours in his workshop, building mirrors for his telescope.
  • In 1783, English writer and astronomer, John Michell, guessed that there were black holes.
  • In 1960, a young radio astronomer named Frank Drake started the first search for signals from other solar systems.
  • Recently, astronomers watched a star falling into a black hole.
  • The astronomer used a telescope to see the planet.
  • The planet moves extremely fast, orbiting its star every two hours, and astronomers believe that it used to be part of a double star.
  • This black hole is about three billion light-years away from the Earth, so the astronomers were watching something which happened a long time ago.

(Definition of “astronomer” from the Cambridge Advanced Learner's Dictionary & Thesaurus © Cambridge University Press)

“astronomer” in American English

See all translations

astronomernoun [ C ]

us /əˈstrɑn·ə·mər/

a person who studies astronomy or whose job is connected with astronomy

(Definition of “astronomer” from the Cambridge Academic Content Dictionary © Cambridge University Press)