176 Spiral Galaxies
Spiral Galaxy Types
Spirals
Classes
- Sa, Sb, Sc
Descriptions
- Central Bulge, Arms. Class depends on how tight or loose the arms are.
Barred Spirals
Classes
- SB
Descriptions
- An elongated bar of stars across the Central Bulge. Is the bar tearing the galaxy apart?
Lenticular Spirals
Classes
- S0
- SB0
Descriptions
- No Spiral Arms, but disk-shaped.Appear to be old when compared to other spirals