KnowraRing NebulaLinked fromLinked fromThe 7 pages that link to Ring Nebula, each with the reason it gives.All 7Broader topic 4Compared with 3Planetary nebulaBroader topic: Its nearly ring-shaped appearance is a familiar example of projected nebular structure.Messier catalogBroader topic: M57 is a classic example of the compact nebulae Messier recorded.NebulaBroader topic: Its bright shell shows the late-stage mass loss that creates planetary nebulae.New General CatalogueBroader topic: Its NGC designation, NGC 6720, shows how the catalogue records objects later classified by their physical nature.Cat's Eye NebulaCompared with: Its comparatively simple ring provides a contrast to the Cat's Eye's nested shells and knots.Ring galaxyCompared with: Its familiar circular appearance can be confused with a ring galaxy despite its vastly smaller scale and stellar origin.NGC 6302Compared with: Its nearly ring-shaped appearance contrasts with NGC 6302’s elongated bipolar lobes.