The milky way galaxy

What is the name of the object in the center of the Milky Way?

• Sagittarius A

• Sagittarius A*

• Sagittarius A^#

• Sagittarius A^{^}

What is the name of the region around outside of the milky way?

• The disc

• The bulge

• The halo

• The expanse

Where do we find the densest region of stars within the Milky Way?

• The bulge

• The disk

• The halo

• They are evenly distributed

Population I stars are ________ than Population II stars

• older

• younger

What is a Cepheid variable?

• a very large star to changes its brightness

• a star in the constellation Cepheid

• a small star that changes size

Where is the sun located in the Milky Way galaxy?

• near the center of the galaxy

• about 2/3s towards the edge

• in the halo of the galaxy

• in the nuclear bulge of the galaxy

Which population of stars are located in the disk with nearly circular orbits??

• Population I stars

• Population II stars

Younger stars that orbit the galactic bulge are located in the

• Halo regions.

• galactic disk.

• galactic bulge.

• density waves.

The area where faint, old stars exists that surrounds the disk & bulge.

• Halo region

• galactic bulge

• galactic disk

• spiral density regions

Figuring out what the Milky Way looks like is difficult because

• we live outside of it.

• it is impossible to send a space probe that far.

• we live inside of it.

• it is full of dark matter.

Tags

NGSS.MS-ESS1-2