Last Updated
：2025/11/20
apparent magnitude
Noun
countable
uncountable
Japanese Meaning
天体などの明るさを数値で表す尺度。数値が低いほど明るくなり、1単位減少すると受光量が約2.512倍に増加する（視等級とも呼ばれる）。
（ plural ）
Quizzes for review
(astronomy) a numerical measure of the brightness of a star, planet etc.; a decrease of 1 unit represents an increase in the light received by a factor of 2.512
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apparent magnitude
The telescope's calibration chart lists each star's apparent magnitude next to its spectral type.
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The telescope's calibration chart lists each star's apparent magnitude next to its spectral type.
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