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What type of star has a low temperature but a high luminosity?
What type of star has a low temperature and a low luminosity?
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Step 1: Understand the problem
Luminosity ($$L$$) refers to the total amount of energy a star emits per unit of time, while temperature ($$T$$) is a measure of the star's internal energy.
We are asked to identify the type of star with a low temperature but high luminosity, and the type of star with a low temperature and low luminosity.
Step 2: Recall the relationship between temperature, luminosity, and radius
where $$L$$ is the luminosity, $$R$$ is the radius, $$T$$ is the temperature, and $$\sigma$$ is the Stefan-Boltzmann constant.
There is a relationship between a star's temperature, luminosity, and radius, given by the formula:
Final Answer
- A star with a low temperature and high luminosity is a red giant or supergiant. - A star with a low temperature and low luminosity is a red dwarf.
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