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Synonyms

astronomer

American  
[uh-stron-uh-mer] / əˈstrɒn ə mər /

noun

  1. an expert in astronomy; a scientific observer of the celestial bodies.


Etymology

Origin of astronomer

First recorded in 1325–75; Middle English; astronomy, -er 1

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

A museum has been given a grant to fund a project about a Bradford-born astronomer who was influenced by the work of medieval Islamic scientists.

From BBC • Apr. 1, 2026

The author documents Tennyson’s reaction to books by the geologist Charles Lyell, the computer pioneer Charles Babbage and the astronomer John Herschel.

From The Wall Street Journal • Feb. 20, 2026

Overall, SpaceX has 9,451 satellites currently in low-Earth orbit, or LEO, according to Jonathan McDowell, an astronomer who tracks space launches on his website.

From MarketWatch • Jan. 12, 2026

The company described the new model, named after American astronomer Vera Rubin, as marking a profound shift from its previous generation of AI architecture, Blackwell, which launched in late 2024.

From Barron's • Jan. 5, 2026

The entire family wept as befit the occasion, except for Clara, who continued to watch the sky with the patience of an astronomer.

From "The House of the Spirits: A Novel" by Isabel Allende