KnowraSpiral armLinked fromLinked fromThe 11 pages that link to Spiral arm, each with the reason it gives.All 11Broader topic 6Related 2Narrower topic 2Compared with 1Milky WayBroader topic: The Milky Way’s spiral arms concentrate gas and young stars, though their exact structure remains mapped from within.Galaxy morphologyBroader topic: Arm pattern and prominence are central features in spiral classifications.Galactic barCompared with: Unlike a bar, a spiral arm winds around the disk rather than crossing the center as an elongated structure.Flocculent spiral galaxyBroader topic: The broken appearance of these structures is the defining feature of flocculent spirals.Messier 83Broader topic: Messier 83’s arms host prominent sites of active star formation.Perseus ArmNarrower topic: The Perseus Arm is a specific large-scale example of this galactic structure.Orion ArmNarrower topic: The Orion Arm is a relatively small example of this galactic structure.Pinwheel GalaxyBroader topic: The Pinwheel’s broad arms contain much of its visible star-forming activity.Unbarred spiral galaxyRelated: Spiral arms define the visible pattern of these galaxies.Magellanic spiralBroader topic: Their loosely wound or incomplete arms distinguish Magellanic spirals from many ordinary spirals.Stochastic self-propagating star formation modelRelated: Propagating star formation can contribute to patterns of young stars within a disk.