Luminositas
Definition & Context
Noun
A word that functions as the name of a specific object or set of objects, such as living creatures, places, actions, qualities, states of existence, or ideas.
The total amount of energy emitted by an astronomical object such as a star per unit of time. It is typically measured in “watts” or expressed in multiples of the Sun's luminosity.
Synonyms & Variants
daya pancar
Descriptive term in standard Indonesian.
fluks energi
A quantity expressing the rate of energy flow passing through a surface.
kilau
Light emitted or reflected by an object.
terang bintang
Descriptive term to express the level of brightness or energy produced by a star.
magnitudo
Another closely related technical term in astronomy.
kecerahan
Often used generally but less scientifically precise than luminosity.
keberkilauan
More poetic or visual description.
Usage Notes or Etymology
This term is absorbed from the Latin luminositas which is rooted in the word lumen meaning light. In the context of modern astrophysics, this term is used specifically to distinguish between the intrinsic energy of a star and its apparent brightness from Earth. The use of this word in Indonesian follows the rules of international scientific term absorption by maintaining the suffix -itas to indicate a property or quantitative magnitude.
Real-world Usage
Luminositas bintang tersebut jauh lebih besar dibandingkan total energi yang dipancarkan matahari kita.
English Translation
Representative of real-world usage and contextual accuracy.
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