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单词 θ749
释义
the world > the universe > star > star-matter > [noun] > brightness (6)
brightness1674

Astronomy and Physics. The intensity of light observed from a light source, esp. a star or other celestial object (cf. magnitude, n. 3a). Also…

absolute brightness1832

the brightness of a star or other celestial object as it would be as seen from a standard distance (now usually ten parsecs); cf. absolute magnitude

sun power1853

(a) energy emanating from the sun in the form of heat, light, etc.; (now chiefly) power generated by harnessing this energy, solar power; (b) the…

luminosity1906

Astronomy. The intrinsic brightness of a heavenly body (as distinct from its apparent brightness, diminished by distance); the rate of emission of…

Subcategories:

— increase in (1)
— scintillation (1)
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更新时间:2024/9/21 2:46:40