as·​tron·​o·​mer | \ ə-ˈsträ-nə-mər How to pronounce astronomer (audio) \

Definition of astronomer

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

Examples of astronomer in a Sentence

Recent Examples on the Web

Every astronomer will tell you to enjoy this rare opportunity. Ashley Strickland, CNN, "Total solar eclipse moves across South America today," 2 July 2019 Visitors can launch their own rockets, relive the Apollo 11 mission in virtual reality, enjoy one-day-only puppet shows, explore space artistry and chat with astronomers who worked on the Apollo 11 mission. Bianca Sanchez,, "Adler celebrates moon landing’s 50th anniversary, plus what’s on PBS when you land back home," 2 July 2019 As far back as 1961, astronomers there were involved in making detailed maps of the moon's surface. Weldon B. Johnson, azcentral, "These Arizona places were critical to the Apollo 11 moon landing. Here's what you should see.," 28 June 2019 Recently astronomers using the Hubble Space Telescope and the European Space Agency’s Gaia star map attempted to calculate the mass of the entire Milky Way galaxy. Brian Resnick, Vox, "Scientists weighed all the mass in the Milky Way galaxy. It’s mind-boggling.," 27 June 2019 Engineers, physicians, geologists, astronomers, biologists and others come to test ideas related to living on Mars. David Kelly, San Diego Union-Tribune, "Life on Mars gets a test run in the Utah desert," 23 June 2019 In the era before digital CCD cameras and their predecessors, photographic plates, astronomers were required to be artists. Mara Johnson-groh, Quartz, "Art plays an invaluable role in groundbreaking space discoveries," 8 June 2019 Hörst hopes to re-create those atmospheres in the lab, thus allowing astronomers to better interpret their results. Quanta Magazine, "The Scientist Who Cooks Up the Skies of Faraway Worlds," 8 Apr. 2019 In the evenings, gaze up at the stars alongside astronomers, who will share traditional Hawaiian navigation technique. National Geographic, "Hawai'i Middle School Expedition," 12 June 2019

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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Statistics for astronomer

Last Updated

6 Jul 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 How to pronounce astronomer (audio) \

Kids Definition of astronomer

: a person who is a specialist in astronomy

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More from Merriam-Webster on astronomer

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

Comments on astronomer

What made you want to look up astronomer? Please tell us where you read or heard it (including the quote, if possible).


to form ideas or theories about something

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