Week 3 Milky Way

What is the name of our galaxy

• Sagitarius

• the Milky Way

• The big bang

• Andromeda

How wide (diameter) is our Galaxy approximately?

• 10 light years

• 1000 light years

• 100,000 light years

• 100,000,000 light years

How tall (thickness of disk/bulge not width) is our Galaxy approximately?

• 10 light years

• 1000 light years

• 100,000 light years

• 100,000,000 light years

Galaxy or Galaxius means _________ in greek

• milky or milk

• river or stream

• white or bright

• stars

Younger and bluer stars are located in the __________ of the galaxy

• bulge/bar

• disk/arms

• halo

Older redder stars (and no younger stars) are located in the __________ of the galaxy (choose 2)

• bulge/bar

• disk/arms

• halo

most globular star clusters are located in the __________ of the galaxy

• bulge/bar

• disk/arms

• halo

What type of galaxy is the milky way?

• a Spiral galaxy

• a barred spiral galaxy

• an irregular dwarf galaxy

• an elliptical galaxy

The milky way looks fuzzy but ___________ discovered that it really was made of individual stars using his telescope

Why is it hard to see the far side of the milky way for us

• There is lots of gas and dust in the milky way that blocks our view

• It is too far away for modern technology to see

• The sun blocks our view of the milky way all the time

• We are at the center of the milky way.