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optical astronomy

noun

the branch of observational astronomy using telescopes to observe or photograph celestial objects in visible light.

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Nearby words

optical, optical aberration, optical activity, optical allachesthesia, optical art, optical astronomy, optical bench, optical binary, optical center, optical character reader, optical character recognition

Origin of optical astronomy

First recorded in 1965–70

Related formsoptical astronomer, noun

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019