How Can We Measure the Strength of Magnetic Fields on the Sun

question 49

Multiple Choice

How can we measure the strength of magnetic fields on the Sun?

• A) By looking for the splitting of spectral lines in the Sun's spectrum
• B) By observing the sizes of sunspots: Bigger sunspots mean a stronger field
• C) By observing auroras here on Earth
• D) Only by using sophisticated computer models because there are no observational ways of measuring magnetic field strength

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