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How do astronomers determine the surface temperature of stars? *
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How do astronomers determine the surface temperature of stars? *

User Brendan Hannemann
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Answer:

To the extent that Stellar spectra look like blackbodies, the temperature of a star can also be measured amazingly accurately by recording the brightness in two different filters. To get a stellar temperature: Measure the brightness of a star through two filters and compare the ratio of red to blue light.

Step-by-step explanation:

User Amicable
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