as·​tron·​o·​mer | \ ə-ˈsträ-nə-mər \

Definition of astronomer 

: a person who is skilled in astronomy or who makes observations of celestial phenomena

Examples of astronomer in a Sentence

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When observed by larger telescopes, astronomers were gobsmacked. Eric Bangeman, Ars Technica, "Talk amongst yourselves: 2018’s most-commented stories on Ars," 24 Dec. 2018 Each probe is providing new hard, forensic evidence for planetary scientists, geologists, and astronomers to form a unified view of Earth's origins, and how other planets could be home to its abundance of life. Joe Pappalardo, Popular Mechanics, "What Human Beings Can Teach Aliens About Probing the Solar System," 5 Dec. 2018 Their claim rests on the idea that all the pilots, astronomers, geologists, physicists, and GPS engineers in the world are intentionally coordinating to mislead the public about the shape of the planet. Liv Boeree, Vox, "How an 18th-century priest gave us the tools to make better decisions," 30 Nov. 2018 Amateur astronomers on the West Coast may need the digital show, as wildfires across California and Idaho—home to the U.S.'s only Dark Sky Reserve—are producing sky-blocking smoke. Condé Nast Traveler, "How to Watch the Perseid Meteor Shower 2018," 10 Aug. 2018 The document was acquired in 1828, when the society received a portion of the papers of astronomer, society member, and ardent revolutionary David Rittenhouse. Stephan Salisbury,, "Rare version of the Declaration of Independence on display at the Museum of the American Revolution just in time for July 4th," 26 June 2018 Based on Kepler's sampling, astronomers now believe that the Milky Way's planets could outnumber its stars, and that our galaxy could be home to billions of potentially habitable worlds. Robbie Gonzalez, WIRED, "NASA’s New Exoplanet Satellite Has a Better Shot of Finding Life Close to Home," 17 Apr. 2018 Most astronomers believe interstellar objects fly through the solar system regularly, and our telescope survey projects are advancing toward the point of finding them much more frequently. Jay Bennett, Popular Mechanics, "How a Passing Star 70,000 Years Ago Changed the Solar System," 26 Mar. 2018 Alan Fitzsimmons, an astronomer at Queen’s University Belfast, who wrote a paper explaining how `Oumuamua could be a comet, tells The Verge. Loren Grush, The Verge, "Why we shouldn’t cry ‘aliens’ about that interstellar space rock just yet," 6 Nov. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'astronomer.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of astronomer

14th century, in the meaning defined above

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5 Jan 2019

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Time Traveler for astronomer

The first known use of astronomer was in the 14th century

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More Definitions for astronomer


as·​tron·​o·​mer | \ ə-ˈsträ-nə-mər \

Kids Definition of astronomer

: a person who is a specialist in astronomy

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Rhyming Dictionary: Words that rhyme with astronomer

Spanish Central: Translation of astronomer

Nglish: Translation of astronomer for Spanish Speakers

Britannica English: Translation of astronomer for Arabic Speakers

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