Star Life Cycle - Earth Science Worksheet (Page 3 of 4) in pdf

Star Life Cycle - Earth Science Worksheet Page 3

Interactive Lab

23. List the temperature, brightness, and type of star for each of the stars in the lab.

a. Betelgeuse –

b. Alpha Centauri B –

c. Our sun –

d. Vega –

e. Sirius B –

24. Where do most stars lie on the HR diagram?

Galaxies

( )

1. How far across is our galaxy, the Milky Way?

2. How can one locate the center of our galaxy as we orbit the sun and the sun orbits the galaxy?

3. Is our solar system moving away from the center of our galaxy?

4. How many years does it take the sun to orbit the center of the galaxy?

5. The Milky Way is part of a set of about 30 galaxies known as _______________________, which

is part of a supercluster known as ___________________________, which is 100,000,000 light

years across.

6. What shape is the Milky Way?

Quasars

( )

1. Describe quasars.

2. Quasars are most likely ___________________________, formed around

____________________________________.

3. Quasars are so bright because the matter is unimaginably ______________.

Star Life Cycle - Earth Science Worksheet Page 3