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1.  What are the stars?

2.  After the Sun, what star is closest to Earth?

3.  Answer BOTH of these questions in the space below:

A)  What is the most common unit of astronomical distance?

B)  In miles, what distance does it represent?

4.  Why is communication with distant galaxies impractical at the present time?

5.  Answer BOTH of these questions in the space below:

A)  How are stars classified?

B)   What are the principal star colors?

6.  What is the difference between apparent and absolute magnitude of stars?

7.  Answer BOTH of these questions in the space below:

A)  What is the "main sequence" of stars?

B)  What is the spectrum-luminosity diagram?

8.  What is unique about white dwarf stars?

9.  What are cepheid stars?

10.  What is believed to be the sequence in the life cycle of a star?

11.  What is the principal factor determining what kind of star will be "born"?

12.  Why do brighter stars have shorter lives?

13.  What is thought to be the normal evolution of stars?

14.  What are novae?

15.  Answer BOTH of these questions in the space below:

A)  What is a nebula?

B)  What are the three kinds of nebulae?

16.  What are binaries?

17.  How are star clusters classified?

18.  Answer BOTH of these questions in the space below:

A)  What is a galaxy?

B)  To which galaxy does our solar system belong?

19.  What is the shape of the Milky Way?

20.  What is the difference between the two population groupings in our galaxy?

21.  Answer BOTH of these questions in the space below:

A)  How are galaxies classified?

B)  What are the three classifications?