I attached file so please answer all of the questions. it doesn’t have to be long answer.Lab Exercise: Galaxy Classification
The goal of this lab is to demonstrate the value of high resolution telescopes and to study the different
types of galaxies in our universe
Types of Galaxies
Galaxies can be broken down into 3 main types. There are many subtypes of each galaxy type. The
three main types are spiral, elliptical, and irregular. In the space below sketch an example of each
galaxy type.
Next, navigate to the following page: https://www.zooniverse.org/projects/mikewalmsley/galaxy-zoomobile
Click get started. Practice cataloging 30 galaxies. Keep a tally of the number of each galaxy type you
categorize.
Spiral
Elliptical
Which galaxy type was the most common you observed?
How did telescope resolution affect how you classified a galaxy?
Irregular
Using a textbook or other resource, explain the evolution of a galaxy.
Did you notice a difference in the color of elliptical vs. spiral galaxies? If so, what is the reason for this
difference? What does this tell you about the types of stars in each galaxy as well as the age of the
galaxy?
Did you observe any instances where galaxies were interacting with each other? If so, how were they
interacting?
Was there any features that you observed at the center of the galaxies you observed? What does this tell
you about the density of the galaxy at its center compared to the rest of the disk?
In our galaxy, most of the mass of the galaxy is actually thought to be located outside the central bulge.
We are not able to observe this matter since it does not radiate? Do a little research on your own or with
your group. What are some reasons we believe most of the matter in our galaxy is located outside the
central bulge?
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