How Did Astronomers Discover the Relationship Between Spectral Type and Mass

question 35

Multiple Choice

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

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

---

Definitions:

Thrill Shows

Entertainment events designed to excite or scare the audience through spectacles of danger or daring.

Experience

The knowledge or practical wisdom gained from direct participation in events or activities.

Symbolize

The process of representing concepts, quantities, or instructions with symbols.

Nutritious

Containing essential nutrients that contribute to good health and well-being, often applied to foods rich in vitamins, minerals, and other beneficial substances.