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    luminosity

    US /ˌluːmɪˈnɒsəti/

    ・

    UK /ˌlu:mɪ'nɒsətɪ/

    B2
    n. (c./u.)Noun (Countable/Uncountable)Producing or giving off a large amount of light
    Although the stars themselves are very far away, their luminosity is obvious on a clear night
    n. (c./u.)Noun (Countable/Uncountable)The total amount of energy emitted by a star or other celestial object per unit time.
    The luminosity of a star is the total amount of energy it emits per unit time.
    n. (c./u.)Noun (Countable/Uncountable)The intensity of light emitted from an object.
    Adjusting the luminosity of the screen can reduce eye strain.
    n. (c./u.)Noun (Countable/Uncountable)The subjective perception of brightness.
    The artist captured the luminosity of the sunset in her painting.

    Video subtitles

    This Is What Will Happen in the Next 100 Trillion Years

    08:29This Is What Will Happen in the Next 100 Trillion Years
    • Due to the sun's increasing luminosity, the average surface temperature will have increased to 47 degrees Celsius.

      Due to the sun's increasing luminosity, the average surface temperature will have increased to 47 degrees Celsius.

    • Due to the Sun's increasing luminosity, the average surface temperature will have increased to 47 degrees Celsius.

      Due to the Sun's increasing luminosity, the average surface temperature will have increased to 47 degrees Celsius.

    B1

    This Is What Will Happen in the Next Billion Years

    07:44This Is What Will Happen in the Next Billion Years
    • In addition, the Sun's increasing luminosity will cause severe effects on Earth.

      In addition, the Sun's increasing luminosity will cause severe effects on Earth.

    • Finally, in 1 billion years, the Sun's luminosity will have increased 10% from its current state.

      Finally, in 1 billion years, the Sun's luminosity will have increased 10% from its current state.

    B1

    The Smallest Adventure – KTM 390 Adventure Review

    10:51The Smallest Adventure – KTM 390 Adventure Review
    • Will this LED ripped off the 790 with enough luminosity to require a heat sink slash down the center.

      Will this LED ripped off the 790 with enough luminosity to require a heat sink slash down the center.

    • Will this LED ripped off the 790 with enough luminosity to require a heatsink slashed down the center be my headlight at the end of the tunnel?

      Will this LED ripped off the 790 with enough luminosity to require a heatsink slashed down the center be my headlight at the end of the tunnel?

    B2

    How We Found Earth's Location in the Milky Way

    12:30How We Found Earth's Location in the Milky Way
    • In 1908, she observed that there was a direct relationship between the luminosity of these stars and their pulsation periods.

      In 1908, she observed that there was a direct relationship between the luminosity of these stars and their pulsation periods.

    • In 1908, she observed that there was a direct relationship between the luminosity of these stars and their pulsation periods;

      In 1908, she observed that there was a direct relationship between the luminosity of these stars and their pulsation periods;

    B2

    The Most Extraordinary Things James Webb Telescope Has Seen So Far (4k)

    37:00The Most Extraordinary Things James Webb Telescope Has Seen So Far (4k)
    • This luminosity suggests that it is producing light through young stars rather than a supermassive black hole, which is typically responsible for the brightness of quasars.

      This luminosity suggests that it is producing light through young stars rather than a supermassive black hole, which is typically responsible for the brightness of quasars.

    • This luminosity suggests that it is producing light through young stars rather than a supermassive black hole, which is typically responsible for the brightness of quasars.

      This luminosity suggests that it is producing light through young stars rather than a supermassive black hole, which is typically responsible for the brightness of quasars.

    B2

    Palace Of Versailles - France - Full Tourist Guide - Travel & DIscover

    52:56Palace Of Versailles - France - Full Tourist Guide - Travel & DIscover
    • The luminosity of this majestic nave, the nobility of the architecture and the exceptional quality of its decoration make this chapel one of the great masterpieces of religious art.

      The luminosity of this majestic nave, the nobility of the architecture and the exceptional quality of its decoration make this chapel one of the great masterpieces of religious art.

    • The luminosity of this majestic nave, the nobility of the architecture, and

      The luminosity of this majestic nave, the nobility of the architecture, and

    B2

    Cosmic Journeys - The Search for Earth-like Planets

    27:10Cosmic Journeys - The Search for Earth-like Planets
    • only 1.3% of its luminosity.

      only 1.3% of its luminosity.

    • but only 1.3% of its luminosity.

      but only 1.3% of its luminosity.

    B2

    Photoshop Tutorial - Automatically selecting objects

    06:30Photoshop Tutorial - Automatically selecting objects
    • I'm not seeing any of the luminosity values underneath, but I can still pick a blue color.

      I'm not seeing any of the luminosity values underneath, but I can still pick a blue color.

    • And then in the Layers panel, I'm going to change the Blend Mode to Color, so only the color values are affected and not the photograph or the luminosity values underneath it.

      And then in the Layers panel, I'm going to change the Blend Mode to Color, so only the color values are affected and not the photograph or the luminosity values underneath it.

    B1

    Olbers' Paradox

    04:48Olbers' Paradox
    • You can do that by just remembering that the luminosity, the brightness decreases as a function of 1 over r squared, if you like math,

      You can do that by just remembering that the luminosity, the brightness decreases as a function of 1 over r squared, if you like math,

    B1

    Why Russia is Suddenly Losing in Ukraine

    26:05Why Russia is Suddenly Losing in Ukraine
    • However, in a recent op-ed that was published in the New York Times by the Foreign Minister of Sweden, Maria Malberg-Stenergard, she wrote that a Swedish government analysis of the change in Russia's nighttime luminosity suggested that the Russian economy actually contracted by 8% during that time span instead.

      However, in a recent op-ed that was published in the New York Times by the Foreign Minister of Sweden, Maria Malberg-Stenergard, she wrote that a Swedish government analysis of the change in Russia's nighttime luminosity suggested that the Russian economy actually contracted by 8% during that time span instead.

    B1