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1. Dictionary

   Lu·mi·nos·i·ty

   /ˌlo͞oməˈnäsədē/

   

   noun

   • 1. luminous quality: "acrylic colors retain freshness and luminosity"
   • ▪ the intrinsic brightness of a celestial object (as distinct from its apparent brightness diminished by distance): "Altair has ten times the luminosity of the sun"
   • ▪ the rate of emission of radiation, visible or otherwise.

   Scrabble Points: 15

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2. People also ask

   What does luminosity mean in astronomy?

   • Luminosity is an absolute measure of radiated electromagnetic energy (light) per unit time, and is synonymous with the radiant power emitted by a light-emitting object. In astronomy, luminosity is the total amount of electromagnetic energy emitted per unit of time by a star, galaxy, or other astronomical objects.

   Luminosity - Wikipedia

   en.wikipedia.org/wiki/Luminosity

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   What does luminous mean in astronomy?

   • 4 meanings: 1. the condition of being luminous 2. something that is luminous 3. astronomy a measure of the radiant power.... Click for more definitions.

   LUMINOSITY definition and meaning | Collins English Dictionary

   www.collinsdictionary.com/dictionary/english/luminosity

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   What is luminosity & why is it important?

   • Luminosity refers to the measurement of the total amount of energy which is emitted by a star. Understand the factors affecting Luminosity along with the theory of Luminosity.

   Luminosity - Definition, Factors, Theory, Formula, Example - BYJU'S

   byjus.com/physics/luminosity/

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3. en.wikipedia.org › wiki › LuminosityLuminosity - Wikipedia

   en.wikipedia.org › wiki › Luminosity

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   Luminosity is an absolute measure of radiated electromagnetic energy (light) per unit time, and is synonymous with the radiant power emitted by a light-emitting object. In astronomy, luminosity is the total amount of electromagnetic energy emitted per unit of time by a star, galaxy, or other astronomical objects.

4. byjus.com › physics › luminosityLuminosity - Definition, Factors, Theory, Formula, Example

   byjus.com › physics › luminosity

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   Luminosity refers to the total amount of energy produced by different celestial bodies (stars, galaxy) per unit time and it is basically measured in joules per second or watts in SI units. We can define luminosity as: The absolute measure of radiated electromagnetic power (light), the radiant power emitted by a light-emitting object.

5. www.oxfordlearnersdictionaries.com › luminosityluminosity noun - Definition, pictures, pronunciation and ...

   www.oxfordlearnersdictionaries.com › luminosity

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   a clear and beautiful quality that something has. the luminosity of the poem. Check pronunciation: luminosity. Definition of luminosity noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

6. www.space.com › 21640-star-luminosity-andLuminosity and magnitude explained | Space

   www.space.com › 21640-star-luminosity-and

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   Oct 11, 2017 · Astronomers define star brightness in terms of apparent magnitude — how bright the star appears from Earth — and absolute magnitude — how bright the star appears at a standard distance of 32.6...

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7. www.collinsdictionary.com › english › luminosityLUMINOSITY definition and meaning | Collins English Dictionary

   www.collinsdictionary.com › english › luminosity

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   6 days ago · luminosity in British English. (ˌluːmɪˈnɒsɪtɪ) nounWord forms: plural-ties. 1. the condition of being luminous. 2. something that is luminous. 3. astronomy. a measure of the radiant power emitted by a star.

8. astronomy.swin.edu.au › cosmos › LLuminosity | COSMOS - Swinburne

   astronomy.swin.edu.au › cosmos › L

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   Luminosity. The luminosity of an object is a measure of its intrinsic brightness and is defined as the amount of energy the object emits in a fixed time. It is essentially the power output of the object and, as such, it can be measured in units such as Watts.

9. scienceworld.wolfram.com › physics › LuminosityLuminosity -- from Eric Weisstein's World of Physics - Wolfram

   scienceworld.wolfram.com › physics › Luminosity

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   Luminosity is an energy flux, equal to the rate of energy flow per unit area per unit time across some surface. Optical luminosity can be measured in lux or lumens. See also: Energy Flux, Luminous Intensity