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Related to visual magnitude: Stellar magnitude
visual magnitude:see magnitudemagnitude,
in astronomy, measure of the brightness of a star or other celestial object. The stars cataloged by Ptolemy (2d cent. A.D.), all visible with the unaided eye, were ranked on a brightness scale such that the brightest stars were of 1st magnitude and the dimmest stars
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visual magnitudeSee magnitude.
visual magnitude[′vizh·ə·wəl ′mag·nə‚tüd]
A celestial body's magnitude as seen by the eye of the observer.