How Did Astronomers Discover the Relationship Between Spectral Type and Mass

question 11

Multiple Choice

How did astronomers discover the relationship between spectral type and mass for main-sequence stars?

• A)by using computer models of hydrogen fusion and stellar structure
• B)by measuring stellar radii with very powerful telescopes
• C)by comparing stars with the same spectral type but different luminosities
• D)by measuring the masses and spectral types of main-sequence stars in binary systems

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Pickering Nuclear Station

A Canadian nuclear power plant located in Pickering, Ontario, known for generating electricity through nuclear reactions.

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