You observe weak hydrogen Balmer lines in a star's spectrum. What can you conclude about the star's temperature?
A) The star has a low temperature, less than about 6000 K.
B) The star has an intermediate temperature, about 10 000 K.
C) The star has a high temperature, greater than about 20 000 K.
D) The star may have a low or high temperature.
Correct Answer:
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