3. Stellar Astronomy

Stellar Spectra — Quiz

Test your understanding of stellar spectra with 5 practice questions.

Practice Questions

Question 1

A star's spectrum shows strong absorption lines of neutral hydrogen. This suggests the star is likely of which spectral type?

Question 2

Which of the following best describes the information revealed by the intensity of absorption lines in a stellar spectrum?

Question 3

If a star's spectral lines are observed to be shifted towards shorter wavelengths, what does this indicate about the star's motion?

Question 4

Which of the following describes the process by which atoms in a star's atmosphere absorb specific wavelengths of light, creating dark lines in its spectrum?

Question 5

What does a star's spectral classification (e.g., O, B, A, F, G, K, M) primarily tell us about the star?