astronomer

[uh-stron-uh-mer]

noun

1. an expert in astronomy; a scientific observer of the celestial bodies.

Word History and Origins

Origin of astronomer¹

First recorded in 1325–75; Middle English; astronomy, -er ¹

Example Sentences

Since then, astronomers have been studying the asteroid, estimating its size to be at least 30 metres wide.

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The little red dots did not align with any familiar category, so astronomers began considering more extreme explanations.

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By studying over 19 years of observational data, astronomers managed to get a good understanding of Ammonite's flight path through space.

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But astronomers are still quite puzzled by some of the details of these cosmic fireworks.

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Not long ago astronomers got an exciting ‘radio message’ from this star.

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Related Words

• astrophysicist www.thesaurus.com
• cosmologist www.thesaurus.com