SESKStuff Everyone Should Know
SESK: Stuff Everyone Should Know · sesk.info/astro-milky-way-barred-spiral

What broad shape best describes the Milky Way?

The Milky Way is a barred spiral galaxy.

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  1. A giant elliptical galaxy
  2. A barred spiral galaxy ✔
  3. An irregular galaxy

Why: The Milky Way has a flattened stellar disk, spiral arms, and a central bar. Dust blocks our visible-light view across the disk, so infrared and radio surveys help map this structure.

Huh, didn't know that: The Milky Way's bright stellar disk is about 100,000 light-years across.

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Our galaxy opened a bar, but it only serves Milky Ways.
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References

Answer: A barred spiral galaxy. The Milky Way has a flattened stellar disk, spiral arms, and a central bar. Dust blocks our visible-light view across the disk, so infrared and radio surveys help map this structure.

  1. The Architecture of the Galaxy openstax.org/books/astronomy-2e/pages/25-1-the-architecture-of-the-galaxy
    The Milky Way Galaxy is thought to have a barred spiral structure that is intermediate between these two examples.
    Checked 2026-10-10.

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