Linked from
The 17 pages that link to Galactic disk, each with the reason it gives.
Milky WayBroader topic: Most of the Milky Way’s visible stars and star-forming gas lie in its disk.
Spiral galaxyBroader topic: The disk contains the spiral arms and most of the galaxy’s cold gas.
Galactic bulgeRelated: The disk surrounds the bulge in many spiral galaxies.
Spiral armNarrower topic: Spiral arms extend through this component.
Galactic barRelated: The bar forms from disk material and lies within the disk’s plane.
Galactic planeBroader topic: The galactic plane is the central midplane of the Milky Way’s disk.
Orion ArmRelated: The Orion Arm lies within the Milky Way’s disk.
Scutum–Centaurus ArmRelated: The arm is a large-scale structure within the Milky Way’s disk.