1. quiz – stellar spectra

2. q 1 - 2:
Name the two neutral elements found in the spectrum for Star X.
(Use symbols or full element names.)
Star X Spectrum

3. q 3: Based on your answer to Q.1, what is Star X’s spectral class? O BF K
Star X Spectrum

4. q 4: What color is Star X? Blue Blue-White White Yellow-White Orange
Star X Spectrum

5. Name the two neutral elements found in the spectrum for Star Y.
q 5 - 6:
Name the two neutral elements found in the spectrum for Star Y.
(Use symbols or full element names.)
Star Y Spectrum

6. Based on your answer to Q.5-6, what is Star Y’s spectral class?F K
Star Y Spectrum

7. q 8: What color is Star Y? Blue Blue-White White Yellow-White Orange
Star Y Spectrum

8. Star W
q 9: Star W contains the 3 ionic spectra indicated. Its spectral class is: O B A F K
Star W Spectrum

9. q : Star Z is a spectral class F star, as indicated by its neutral H and Na lines. However, something odd has happened to Star Z’s spectral lines.
What do we call this repositioning?
What does it tell us about Star Z’s
movement?
Star Z
Star Z Spectrum

10. q 12: Briefly describe the stellar activity that causes the peculiar behavior of the spectra for star #9:
Hint…

11. q 13: Which of the spectra at the right is an emission spectrum?B D C

12. B
q 14: Which stellar “situation” would create the spectrum shown on the next page? A
Large Planet Orbits Star C D
Binary Pair
Cepheid Variable

13. q 14: Which stellar “situation” would create the spectrum shown below?
Large Planet Orbits Star C D
Binary Pair
Cepheid Variable

14. q 15: Which stellar “situation” would create the spectrum shown below?
Large Planet Orbits Star C D
Binary Pair
Cepheid Variable