Disc galaxy

A disc galaxy (or disk galaxy) is a galaxy characterized by a galactic disc, a flattened circular volume of stars.[1] These galaxies may or may not include a central non-disc-like region (a galactic bulge).[2]

The Sculptor Galaxy (NGC 253) is a disk galaxy

Disc galaxy types include:

Galaxies that are not disc types include:

References

  1. "Disk Galaxies | COSMOS". astronomy.swin.edu.au.
  2. "The Galactic Bulge". burro.case.edu.
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