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Luminosity - Wikipedia


The Stefan–Boltzmann equation applied to a black body gives the value for luminosity for a black body, an idealized object ...

Formulas - Luminosity - Astronomy Online


Science - Formulas. ... Physics - Formulas - Luminosity ... if we know distance and brightness of a star, we can determine its Luminosity (or actual brightness):.

www.ask.com/youtube?q=Luminosity Formula&v=CaE-OhJetkw
Dec 26, 2012 ... Luminosity of a Star. ... Introductory Astronomy: Luminosity, Temperature, and Surface Area - Duration: 16:15. P.E. Robinson 5,331 views. 16:15 ...

Apparent Magnitudes and Absolute Magnitudes


The brightness of a star of a given luminosity L, radiated in all directions, falls ... The basic formula relating the apparent (m) and absolute (M} magnitudes then is.

Luminosity of Stars - Australia Telescope National Facility


How is this equation derived? It is simply an application of the luminosity ratio relationship (4.7).

Concept of luminosity


The measurement of luminosity for e+e− as well as hadron colliders and the methods for the ... luminosity and derive the formula for basic cases. Additional ...

What is the Formula for Determining the luminosity of a star? | Yahoo ...


Feb 10, 2010 ... Best Answer: The formula for the Luminosity L = Area * Energy Flux = 4pi R^2 * sigma T^4, where R is the radius and T the temperature.

Luminosity - Hertzsprung-Russell Diagram - NAAP - UNL Astronomy


Luminosity is the total energy that a star produces in one second. It depends on both the radius of the star and on its surface temperature. One can calculate ...

Luminosity Formula - UNL Astronomy


Luminosity Formula. The student is given the radius/temperature/luminosity of a star as compared to the sun and is asked to determine what the ...



This equation allows you to find the energy of a moving object if its mass and velocity are ... VARIABLES: L, is Luminosity of the emitter, (in Joules per second).

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Luminosity of Stars: Radius & Surface Temperature


The luminosity of a star depends upon radius and surface temperature. ... In the equation below L = luminosity and R = radius. Let's say the radius of the star is 5  ...

Luminosity and Apparent Brightness | Astronomy 801: Planets, Stars ...


The difference between luminosity and apparent brightness depends on distance . ... Thus, the equation for the apparent brightness of a light source is given by ...

The Inverse-Square Law


Feb 18, 2003 ... The total amount of light a source emits is called its luminosity. ... between luminosity, brightness, and distance with a simple formula. Let L be ...