Linked from

The 27 pages that link to Spiral galaxy, each with the reason it gives.

• Andromeda GalaxyNarrower topic: Andromeda’s disk and arms place it in this broad galaxy class.

• Barred spiral galaxyNarrower topic: Barred spirals are a subtype of spiral galaxy, sharing its disk and arm structure.

• Spiral armNarrower topic: Spiral arms are defining structures within this broader galaxy type.

• Triangulum GalaxyNarrower topic: M33’s defining shape places it in this galaxy class.

• Whirlpool GalaxyNarrower topic: The Whirlpool is a prominent example of this broad galaxy form.

• Galactic barNarrower topic: Galactic bars are central structures found in a substantial fraction of spiral galaxies.

• Messier 51Narrower topic: Messier 51 provides a nearby, face-on case for studying this galaxy type.

• Sombrero GalaxyNarrower topic: The Sombrero Galaxy has a disk and spiral structure, though its edge-on view makes the arms difficult to see.

• Messier 81Narrower topic: M81’s grand-design arms place it within this broad galaxy type.

• Perseus ArmNarrower topic: The arm’s shape and stellar populations are features of spiral-galaxy structure.

• Pinwheel GalaxyNarrower topic: The Pinwheel is a large, loosely wound example of this galaxy type.

• NGC 6946Narrower topic: NGC 6946’s prominent arms place it in this galaxy class.

• Scutum–Centaurus ArmNarrower topic: The Milky Way’s arm belongs to this broad galactic form.

• Unbarred spiral galaxyNarrower topic: Unbarred spirals are members of this broader galaxy class.

• Magellanic spiralNarrower topic: This is the broader galaxy class defined by the arms Magellanic spirals display.

• Sculptor GalaxyNarrower topic: NGC 253's broad form is spiral, despite its unusually active central region.