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Astronomy
Galaxies Test
Name:
Directions: Answer the following questions with the most correct
answers.
TRUE/FALSE:
1. _____ Hubble classified galaxies
2. _____ There are three main classifications of galaxies
3. _____ Elliptical galaxies have little or no star formation
4. _____ Elliptical galaxies have little or no rotation
5. _____ Galactic cannibalism occurs in irregular galaxies
6. _____ S0 galaxies were once called lenticular galaxies
7. _____ The Milky Way is a barred spiral galaxy
8. _____ Our sun is in the Orion arm of the Milky Way
9. _____ The Andromeda galaxy is an irregular galaxy
10. _____ Our planet is closer to the edge of the Andromeda galaxy
DIAGRAM:
1. Diagram and label the fork classification system of galaxies
2. Diagram and label a spiral galaxy.
3. Diagram and label the milky-way galaxy.
SHORT ANSWERS:
1. Explain the lettering and numbering system used to classify galaxies.
2. How did we find the approximate age of the universe knowing the
distance of the galaxy and its red-shift?
3. List and explain the main characteristics of each galaxy type.