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

In 2019 and 2020, Betelgeuse began to grow dimmer and dimmer in brightness, so much that astronomers called this event, the ‘Great Dimming.’

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For years, astronomers have puzzled over a faint, widespread glow of gamma rays near the Milky Way's center.

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For one astronomer at Northern Arizona University's Department of Astronomy and Planetary Science, the answer is simple: start building better models.

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This discovery gives astronomers important clues about how rogue planets form.

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For more than a century and a half, astronomers have been captivated by the distant galaxy OJ 287, located about five billion light years from Earth.

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Related Words

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