Disc galaxy

From Wikipedia, the free encyclopedia

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)