Galaxy vocab

Question 1

Galactic disc

Answer 1

Thin basically circular distributes of stars and gas and dust

Question 2

Arms

Answer 2

Pinwheels within the galaxy that are made up of stars, planets, asteroids, and hydrogen clouds that reached out from the center of the galaxy two its edges

Question 3

Central bulge

Answer 3

A central football shaped structure, composed of stars, gas, and dust

Question 4

Halo

Answer 4

Nearly spherical volume of
Thinley scattered stars, globular clusters
and tenuous, gas, observe surrounding spiral galaxies.

Question 5

Globular cluster

Answer 5

A large compact spherical star cluster typically of old stars in the outer regions of the Galaxy

Question 6

Local group

Answer 6

The group of more than 20 galaxies to which the Milky Way galaxy belongs to

Question 7

spiral galaxy

Answer 7

Typically has a rotating disk with spiral arms that curve out from a dence central region

Question 8

Elliptical galaxy

Answer 8

A type of galaxy with aproximately
Ellipsoidal shape, and a smooth nearly featureless image

Question 9

Irregular galaxy

Answer 9

Any galaxy that does neatly fit into one of the categories of the humble classification scheme

Question 10

The big bang theory

Answer 10

The idea that the universe began as just a single point, then expanded, and they stretch to grow as large as today