https://en.wikipedia.org/wiki/Luminosity

When not qualified, the term "luminosity" means bolometric luminosity, which is measured either in the SI units, watts, or in ...

https://en.wikipedia.org/wiki/Lumen_(unit)

The lumen (symbol: lm) is the SI derived unit of luminous flux, a measure of the total quantity of ... emitted, while luminous flux is weighted according to a model ( a "luminosity function") of the human eye's sensitivity to various wavelengths.

http://astronomy.swin.edu.au/cosmos/L/Luminosity

It is essentially the power output of the object and, as such, it can be measured in units such as Watts. However, astronomers often prefer to state luminosities by ...

https://pages.uoregon.edu/soper/Light/luminosity.html

We will often measure luminosities of stars in units of the luminosity. That is, we might say for a certain star Lstar = 5.2 x Lsun, meaning that the star has 5.2 times  ...

https://www.space.com/21640-star-luminosity-and-magnitude.html

Oct 11, 2017 ... The brightness of a star is measured several ways: how it appears from Earth, how bright it would appear from a standard distance and how ...

http://www.astro.sunysb.edu/aevans/PHY523/classnotes523/useful-definitions-pp.pdf

Luminosity is measured in units of Watts (I.e., J/s) or ergs/s, & it is determined for whatever wavelength/frequency the flux is determined at. • Bolometric ...

https://www.britannica.com/science/luminosity

Luminosity is an absolute measure of radiant power; that is, its value is ... Luminosity, in astronomy, the amount of light emitted by an object in a unit of time .

https://www.e-education.psu.edu/astro801/content/l4_p4.html

Perhaps the easiest measurement to make of a star is its apparent brightness. ... The difference between luminosity and apparent brightness depends on distance . ... In practical terms, flux is given in units of energy per unit time per unit area ...

https://physics.tutorvista.com/light/luminosity.html

Luminosity in general is the measurement of brightness of an object or the amount of light radiated by it per unit time. It is measured in watts. Watt is a unit of  ...

https://www.astronomynotes.com/starprop/s4.htm

Nov 2, 2010 ... The absolute magnitude is a measure of the star's luminosity---the ... so a "watt" or a "megawatt" are too tiny a unit of power to use for the stars.