In SI units, luminosity is measured in joules per second, or watts. In astronomy, values for luminosity are often given in the terms of the luminosity of the Sun, L⊙. Luminosity, in astronomy, the amount of light emitted by an object in a unit of time.
The luminosity of the Sun is 3.846 × 1026 watts (or 3.846 × 1033 ergs per second). luminosity noun lu mi nos i ty ˌlü-mə-ˈnä-sə-tē plural luminosities Synonyms of luminosity 1 a : the quality or state of being luminous Luminosity is a key concept in astronomy that measures the total amount of energy a celestial object—such as a star, galaxy, or nebula—emits per second. Unlike apparent brightness, which depends on an object's distance from the observer, luminosity is an intrinsic property of the object itself. The luminosity of a star, on the other hand, is the amount of light it emits from its surface.
is luminosity free, The difference between luminosity and apparent brightness depends on distance. Luminosity and brightness are related concepts, but they are not the same thing. Brightness refers to how an object appears to an observer, while luminosity is a measure of the total energy emitted by the object. LUMINOSITY meaning: 1. the state of producing or reflecting bright light; the state of appearing to shine: 2.
