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Luminosity

en.wikipedia.org/wiki/Luminosity

[edit]. Point source S is radiating light equally in all directions. The amount passing through an area A varies with the distance ...

Formulas - Luminosity - Astronomy Online

astronomyonline.org/Science/Luminosity.asp

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

Luminosity of Stars - Australia Telescope National Facility

www.atnf.csiro.au/outreach/education/senior/astrophysics/photometry_luminosity.html

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

Luminosity - Hertzsprung-Russell Diagram - NAAP - UNL Astronomy

astro.unl.edu/naap/hr/hr_background2.html

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

astro.unl.edu/classaction/questions/stellarprops2/ca_stellarprops2_luminosity.html

A star with a radius like that of the sun and a surface temperature twice that of the sun, will have luminosity _____ times as great as the sun's luminosity.

What is the Formula for Determining the luminosity of a star ...

answers.yahoo.com/question/index?qid=20100210132357AAtLKDg

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

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

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

Luminosity of Stars: Radius & Surface Temperature

www.idialstars.com/april2013.htm

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  ...

Finding the Radius of a Star - SkyServer

skyserver.sdss.org/dr1/en/proj/advanced/hr/radius1.asp

The luminosity of a star is given by the equation. L = 4pR<sup>2</sup>s T<sup>4</sup>,. Where L is the luminosity in Watts, R is the radius in meters, s is the Stefan-Boltzmann constant

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 3,999 views. 16:15.
Popular Q&A
Q: How would i use the luminosity formula with this?
A: Most guys ( gals) do the mistake of calculating in absolute quantities when only ratios suffice. Don't convert every quantity to absolute quantiies; do the comp... Read More »
Source: answers.yahoo.com
Q: Which of the following correctly states the luminosity-distance f...
A: Apparent Brightness = luminosity/4(pi)x(distance)2. Read More »
Source: wiki.answers.com
Q: What is the formula for absolute magnitude and the formula for lu...
A: Absolute magnitude's formula is m - M = 5 log(d/10) (4.2). The formula for luminosity, unfortunately, cannot be written in a Read More »
Source: www.chacha.com
Q: What is the Formula for Determining the luminosity of a star?
A: The formula for the Luminosity L = Area * Energy Flux = 4pi R^2 * sigma T^4, where R is the radius and T the temperature. The second factor is of course the Ste... Read More »
Source: answers.yahoo.com
Q: What is the formula to calculate the luminosity of the sun? .if i...
A: Answer 1. It is a rather simple matter - see the link. Read More »
Source: www.helpfulbox.com