Barred spiral galaxies are a type of galaxy similar to a spiral galaxy but possessing a central "bar" of bright stars near the core, to which the spiral arms are attached. Most spiral galaxies have bars, actually, but a "barred spiral" is usually used to refer to a galaxy with a more prominent bar. The creation of these bars is thought to be related to the same density wave that creates normal spiral arms.
Like normal spirals, barred spiral galaxies are subdivided from SBa to SBd based on how tightly wound they are.
| E · S0 · SA · SB · SM · Irr |
dSph · dE · dIrr