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单词 surface brightness
释义

Definition of surface brightness in English:

surface brightness

noun
Astronomy

  • The luminosity of a celestial object per unit area on the sky, typically expressed as the magnitude per square arc second.

Origin

Early 20th century; earliest use found in Science.

Definition of surface brightness in US English:

surface brightness

noun
Astronomy

  • The luminosity of a celestial object per unit area on the sky, typically expressed as the magnitude per square arc second.

Origin

Early 20th century; earliest use found in Science.
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更新时间：2024/9/21 13:52:08