How Do You Calculate Luminosity? A star’s luminosity, which is how much energy is emitted per second from the star, is measured in Watts or in solar luminosities (L⊙) where 1L⊙ = 3.85 x 1026 Watt. We determine a star’s luminosity by measuring its distance and its apparent brightness How do you calculate luminosity of
How Do You Calculate Bolometric Luminosity? L⊙ = 4 × 1033erg s−1 = solar luminosity. 6 L⊙. Mbol = 4.8 − 2.5 log (L/L⊙) = absolute bolometric magnitude of a star with a luminosity L . How is solar luminosity calculated? How do we determine the luminosity of the Sun? Another way to look at
Does Luminosity Decrease With Distance? Does luminosity decrease with distance? Notice that as the distance increases, the light must spread out over a larger surface and the surface brightness decreases in accordance with a “one over r squared” relationship. The decrease goes as r squared because the area over which the light is spread is