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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.
==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<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>
== References ==
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[[category:physics]]
[[category:physics]]