Disc galaxy

Disc galaxies are galaxies which have discs, a flattened circular volume of stars. These galaxies may, or may not include a central non-disc-like region (central bulge).

Disc galaxy types include

• spiral galaxies
  
  • barless spiral galaxies (type S, SA)
    
  • barred spiral galaxies (type SB)
    
  • intermediate barred spiral galaxies (type SAB)
    
• lenticular galaxies (type E8, S0, SA0, SB0, SAB0)
  

Retrieved from "http://en.wikipedia.org/"
All text is available under the terms of the GNU Free Documentation License