KnowraSpiral galaxyLinked fromLinked fromThe 27 pages that link to Spiral galaxy, each with the reason it gives.All 27Broader topic 4Related 1Narrower topic 16Compared with 6GalaxyBroader topic: Its organized disk contrasts with the smoother appearance of elliptical systems.Galaxy morphologyBroader topic: Spirals are identified by their disk and arm structure.Hubble sequenceBroader topic: Spirals occupy the sequence’s disk-galaxy branches, graded by structure.Galaxy morphological classificationBroader topic: Spiral galaxies are a major class, subdivided by arm tightness and bulge prominence.