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How do we estimate the surface temperature of a star?

killian

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How do we estimate the surface temperature of a star?

How do we estimate the surface temperature of a star?
A) By estimating its luminosity
B) By obtaining its spectrum and classifying the spectral type
C) By measuring the Doppler shifts of absorption lines in its chromosphere
D) By estimating its parallax

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padre

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killian Author

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10 years ago

Thanks sir this is for my astronomy

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