Changes

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==

==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>

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 ==

== References ==

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[[category:physics]]

[[Category:Physics]]