| 单词 | visual magnitude |
| 释义 | visual magnitudevisual magnitudevisual magnitudevisual 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 ..... Click the link for more information. . visual magnitudeSee magnitude.visual magnitude[′vizh·ə·wəl ′mag·nə‚tüd] |
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