Astronomer meaning

ə-strŏn'ə-mər
The definition of an astronomer is a scientist who studies matter and objects in outer space.

Someone who observes the stars and makes notes about their movements is an example of an astronomer.

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An expert in astronomy.
noun
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One who specializes in astronomy.
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One who studies astronomy, the stars or the physical universe; a scientist whose area of research is astronomy or astrophysics.
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Origin of astronomer