astronomer

American  

[uh-stron-uh-mer] / əˈstrɒn ə mər /

noun

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

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Etymology

Origin of astronomer

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

Example Sentences

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

If astronomers can confirm the object and precisely measure the timing of its pulses, it could create a rare opportunity to test General Relativity under extreme conditions.

From Science Daily

An international group of astronomers has identified a faraway planetary system that calls into question one of the most widely accepted ideas about how planets take shape.

From Science Daily

Because it is in such an early phase, the Egg Nebula offers astronomers a valuable chance to study what happens as Sun-like stars approach the end of their lives.

From Science Daily

The astronomer also said the star identified was slightly smaller than one scientists would "nominally expect to turn into a black hole."

From Barron's

Related Words

• astrophysicist
• cosmologist