1.
All of space and the matter space contains
2.
An extremely large grouping of stars in space
3.
Young galaxies that have no regular shape or blob-like
4.
Middle-aged, disc shaped galaxies with a bulge in the center and very long arms winding and spiraling around the center
5.
Old galaxies that have a long, oval shape with no spiral arms
6.
A large cloud of gas and dust that is the location for star formation.
7.
A huge ball of superheated gas that produces its own light from nuclear reactions in its core.
8.
The measure of brightness of a star.
9.
A diagram used to categorize stars based on their luminosity and surface temperature.
10.
Stable, middle-aged stars that are plotted along the diagonal belt on the H-R Diagram
11.
Older stars that have grown into a very large size. This size causes them to be much brighter but cooler.
12.
Older stars that have grown into an EXTREMELY large size. This size causes them to be EXTREMELY bright but much cooler.
13.
Very old stars that have shrunk to a very small size. This size causes them to be much hotter but very dim.
