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Encyclopedia > Luminosity

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Luminosity

In astronomy, luminosity is the amount of energy a body radiates in unit time. Stellar luminosities are usually expressed in solar luminosities, sometimes the absolute bolometric magnitude is given instead, what is related to the luminosity. In X-ray and radio wavelengths, luminosity is sometimes expressed in watts.

In physics, luminosity is the density of luminous intensity[?] in a given direction.


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