Galaxies Flashcards
1
Q
Spiral
A
Large rotating disk of stars, dust, and gas.
Active nebular process!
Mostly made of young stars.
2
Q
Barred Spiral
A
Spiral, but with an arm extending from the bulge.
3
Q
Irregular
A
Active nebular process, abundant dust and stuff.
4
Q
The Earth as it relates to the galaxy and universe?
A
It is in the solar system, in the Milky Way, in the local group, in Virgo Supercluster, in the Laniakea Supercluster, in the observable universe.
5
Q
Elliptical
A
Spheroid.
Lacks H and He, and no dust either, so no scattered light, and color can’t be discerned!
Inactive nebular process, and very old stars.
