astronomer

noun
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

With this many rogue planets peppering our galaxy, astronomers should have an easier time finding candidates to study. Avery Thompson, Popular Mechanics, "Our Galaxy Could Have 50 Billion Rogue Planets," 11 Mar. 2019 Although few traditions about Mars survive, astronomers focusing on Australia have evidence that Aboriginal peoples across the region tracked it and the other planets carefully for millennia. Meghan Bartels, Space.com, "Who Discovered Mars, Anyway? A Look Back at the History of the Red Planet," 27 July 2018 The opportunity was seized by the British Astronomer Royal, Frank Dyson, and a leading Cambridge astronomer, Arthur Eddington, who had become a convinced advocate of general relativity. Andrew Robinson, WSJ, "The Experiment That Made Einstein Famous," 14 Feb. 2019 NGC 3256's odd, distorted shape betrays its violent origins: The galaxy is the product of a collision between two spiral galaxies that astronomers think occurred about 500 million years ago. Mike Wall, Space.com, "Galaxy Distorted by Long-Ago Collision Glows in Gorgeous Hubble Photo," 1 June 2018 Those movements will provide valuable clues about the forces that have shaped the structure of the galaxy, allowing astronomers to reconstruct its history. The Economist, "For the first time, astronomers have a reliable map of the heavens," 26 Apr. 2018 In the journal Nature on Wednesday, California astronomers shine a light on the 21-mile-wide (34-kilometer-wide) moon Hippocamp, named after the mythological sea horse. Marcia Dunn, The Seattle Times, "Neptune’s newest, tiniest moon likely fragment of bigger one," 20 Feb. 2019 Prior to its launch, astronomers knew planets existed around other stars, but their knowledge beyond that was fuzzy. Eric Berger, Ars Technica, "NASA is about to turn off the Kepler spacecraft, and it will drift away," 30 Oct. 2018 To an astronomer looking through a telescope here on Earth, all of these stars are just points of light. Avery Thompson, Popular Mechanics, "Astronomers Discover the Milky Way Is More Twisted and Warped Than We Thought," 5 Feb. 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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Last Updated

13 Apr 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

astronomer

noun
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

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