Difference between revisions of "Luminosity"
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Luminosity is the total amount of [[energy]] per unit time released by an object. | Luminosity is the total amount of [[energy]] per unit time released by an object. | ||
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| + | ==Luminosity of stars as a function of distance== | ||
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| + | the apparent luminosity of stars can be used to infer distance in light years, as luminosity decreases proportionally to distance<ref>http://physics.uoregon.edu/~soper/Light/luminosity.html</ref>, no star has been observed to have a distance farther than 10,000 light years, as this would contradict [[creationism]] <ref>http://www.answersingenesis.org/creation/v25/i4/lighttravel.asp</ref> | ||
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| + | == References == | ||
| + | <div class="references-small"> | ||
| + | <references /> | ||
[[category:physics]] | [[category:physics]] | ||
Revision as of 13:13, May 2, 2008
Luminosity is the total amount of energy per unit time released by an object.
Luminosity of stars as a function of distance
the apparent luminosity of stars can be used to infer distance in light years, as luminosity decreases proportionally to distance[1], no star has been observed to have a distance farther than 10,000 light years, as this would contradict creationism [2]