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Unformatted text preview: Quiz: Homework Set 7 https://angel.msu.edu/section/content/default.asp?WCI=pgTool%5FQu... 1 of 2 11/24/2007 5:44 PM Homework Set 7 1. [1 point each] Match the galaxy shown in the figure to its Hubble Type. Refer to Section 15.1 of the text, and particularly to Fig. 15.7, for guidance. But... careful... all of the spiral galaxies in Fig. 15.7 are seen face-on, while this may not be the case for all of the galaxies you are being asked to classify. 1. Galaxy 1 2. Galaxy 2 3. Galaxy 3 4. Galaxy 4 5. Galaxy 5 6. Galaxy 6 6 A. E6 6 B. SBb 6 C. Sc 6 D. Irr 6 E. Sa 6 F. E0 Answer: A:1, B:5, C:6, D:3, E:2, F:4 2. [2 pts] A pulsating variable star has a period of 10 days. About how many times more luminous is it than the Sun? Refer to Fig. 15.12 in the textbook. g f e d c A. 3,000 g f e d c B. 30,000 g f e d c C. 10,000 g f e d c D. 1,000 Answer: A 3. [1 pt] Refer to figure 15.14 (3rd edition) or 15.15 (4th edition) in your textbook, which shows the spectra of two galaxies. The upper spectrum is[1 pt] Refer to figure 15....
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This note was uploaded on 03/19/2008 for the course ISP 205 taught by Professor Donahue during the Spring '08 term at Michigan State University.
- Spring '08