KnowraReduced massLinked fromLinked fromThe 11 pages that link to Reduced mass, each with the reason it gives.All 11Related 9Compared with 2Effective massCompared with: It arises from separating two free bodies, not from a medium’s effect on one excitation.Gravitational parameterCompared with: It appears in two-body dynamics, whereas the relative orbit's gravitational parameter involves both masses multiplied by G.