KnowraWhirlpool GalaxyLinked fromLinked fromThe 10 pages that link to Whirlpool Galaxy, each with the reason it gives.All 10Broader topic 9Compared with 1Spiral galaxyBroader topic: Its prominent arms illustrate how gravitational interaction can enhance spiral structure.Density wave theoryBroader topic: Its striking two-arm pattern has been studied as a response to a companion galaxy’s gravity.Vesto SlipherBroader topic: Slipher obtained an early spectrum of this spiral nebula while developing his measurement method.Spiral armBroader topic: Its prominent arms make a clear example of organized spiral structure.Grand-design spiral galaxyBroader topic: Its striking two-arm pattern is a classic example of a grand-design spiral.Messier objectBroader topic: Its striking spiral structure makes it a canonical galaxy entry.Messier 83Compared with: Its conspicuous companion-driven spiral structure contrasts with Messier 83’s barred form.Canes VenaticiBroader topic: This prominent deep-sky object lies within Canes Venatici.Interacting galaxyBroader topic: Its companion's passage is linked to disturbances in the spiral structure.Unbarred spiral galaxyBroader topic: Its prominent spiral arms are not organized around a central stellar bar.