AY102 Introduction to Astronomy Lab

QUIZ 3 Review

Updated 8/16/2001


 
 

Instructions: Select the best answer from the choices. Use your Lab notes, Lab manual and/or AY101 textbook. When finished press the "Correct Review" button and the correct answers will appear next to yours. This only works if you answer every question. This Quiz has been tested on Netscape and MS Explorer Browsers
 
 

1 Lab 9: The Galactic Distribution of Clusters

Below is a graph of the Galaxy Clusters as seen from Earth in Galactic Coordinates. The graph is in Galactic Coordinates. Numbers 3 and 4 identify the general areas enclosed by the boxes they are in.

a ) What number corresponds to the Galactic Longitude? Your Answer: 

b ) What number corresponds to the Galactic Latitude? Your Answer: 

c ) What number corresponds to the Galactic Equator? Your Answer: 

d ) What number corresponds to the Galactic Halo? Your Answer: 

e ) What is the color of the Globular Clusters? Your Answer: 

f ) What is the color of the Galactic Clusters? Your Answer: 

g ) Where are you must likely to see Dust Clouds? Your Answer: 
 
 

 2 Lab 10: The Milky Way a ) Below are two photographs of the same three stars (1,2,3). Two different filters were used to take these photographs (RED,BLUE). IDENTIFY 1,2, and 3 by their color.

RED: INTERMEDIATE: BLUE: 

b ) Below is a Palomar Sky Survey I photograph of the North American nebula. IDENTIFY features (1,2,3,4) as hydrogen II regions, or dust clouds.
 
 

1: 

2: 

3: 

4: 

c ) Which DUST CLOUD is the nearest to us? Your Answer: 
 

 3 Lab 11: Galaxies and Clusters of Galaxies a ) Below are three galaxies. IDENTIFY: spiral galaxy, barred spiral galaxy, elliptical galaxy.
 
 

M101: 

M61: 

M86: 

b ) Below are two Galaxy Clusters. Which one is the closest to us?

ir09104
 

Coma Berenices
 

 The Cluster closest to us is:
  4 Lab 12: Galactic Redshifts and Cosmology
    1. Below are the spectra of three galaxies in different clusters. Order them by redshift.

      2.  

       

      Most Redshift:

      Intermediate:

      Least Redshift:
       

    2. According to Hubble's law, which galaxy must be moving fastest away from us?

      3.  

       

      Your Answer:
       
       


       
       

      Correct: Incorrect: Percent:
       
       

      Note: This grade reflects how you would have done on Quiz 3 if you had taken it just now.
      If you have any questions or problems e-mail me at gomez002@bama.ua.edu

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