1 astronomer | Definition of astronomer

astronomer

noun
as·​tron·​o·​mer | \ É™-ˈsträ-nÉ™-mÉ™r 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

But for smaller, rocky planets, astronomers will need more powerful telescopes. Jay Bennett, Smithsonian, "Water Vapor Detected in the Atmosphere of an Exoplanet in the Habitable Zone," 11 Sep. 2019 Correcting for the cooler fires of a red dwarf, astronomers conclude that even at so close a remove, K2-18b has surface temperatures that range from a low of -100º F (-73º C) to a high of 116º F (47º C). Jeffrey Kluger, Time, "Why This Earth-Like Planet is a Big Step Forward in the Search for Life," 11 Sep. 2019 In the evenings, gaze up at the stars alongside astronomers, who will share traditional Hawaiian navigation techniques. National Geographic, "Hawai‘i Middle School Expedition," 10 Sep. 2019 Inspired by the discovery of the Chicxulub crater in the 1970s, astronomers and NASA now routinely map the orbits of nearby asteroids and meteor swarms for signs of potentially lethal collisions. Fox News, "Scientists uncover new evidence of the asteroid that killed off the dinosaurs," 10 Sep. 2019 Panelist and astronomer Marc D’Antonio expressed the same concern in regard to media organizations and the information being released. Chelsea Hofmann, azcentral, "International UFO Congress holds 28th annual conference in downtown Phoenix," 8 Sep. 2019 According to Farmers’ Almanac contributing astronomer, Joe Rao, this combination is a once-in-a-20-year occurrence, so your next chance to see one in the U.S. is August 13, 2049. Selena Barrientos, House Beautiful, "A Rare Harvest Moon Is Happening on Friday the 13th, and We’re Spooked," 6 Sep. 2019 Tofue wants the Great Elephant's Trunks listed in an astronomical atlas so that other astronomers can add their input on the discovery. David Grossman, Popular Mechanics, "Man, These Great Elephant's Trunks Are a Galactic Wonder," 5 Sep. 2019 Last month, a consortium of five dozen astronomers reported the discovery of eight new bursts that may lead to an answer. Seth Shostak, NBC News, "Fast radio bursts from space have baffled scientists for years. But an explanation may come soon.," 3 Sep. 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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More Definitions for astronomer

astronomer

noun
as·​tron·​o·​mer | \ É™-ˈsträ-nÉ™-mÉ™r 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