Last Updated：2025/11/21

(astronomy) A relative measure of the relationship between stellar magnitude and the distribution of stars between magnitudes

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luminosity function

Source Word

luminosity function

Noun

uncountable

(astronomy) A relative measure of the relationship between stellar magnitude and the distribution of stars between magnitudes

Japanese Meaning

天文学において、天体（特に恒星）の明るさ（星等）と、その明るさに応じた天体の分布との関係を相対的に示す尺度。

The astronomer used the luminosity function to compare the distribution of stars by magnitude between the two clusters.

天文学者は、2つの星団における等級ごとの星の分布を比較するために光度関数を用いた。

Sense（1）

(astronomy) A relative measure of the relationship between stellar magnitude and the distribution of stars between magnitudes

Sense（2）

(physics) A standard measure of the response of the human eye to light of different wavelengths