I am doing a lab on the H-R diagram, and the question is:
"Luminosity" doesn't necessarily mean "brightness". Instead, luminosity refers to the amount of energy that a star is giving off. In the diagram, Betegeuse and Barnard's star are about the same temperature, but Betelgeuse is much more luminous. What is this telling us about the characteristics of these two stars? Name at least 2 characteristics and explain your reasoning"
Now one reason that I want to think has to do with the differences in luminosity is due to the fact that Betelguese is larger and bc of that would most likely emit more luminosity (or energy) and the inverse-square law would play a factor in this? My second characteristic is perhaps the relative distance that each star is.
Is there anyone with some knowledge of astronomy that could help me figure out whether or not I am on the right track with this question? Any help is greatly appreciated. Thanks:)
2006-11-09
04:05:09
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4 answers
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asked by
serenity113001
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