KnowraRoche lobeLinked fromLinked fromThe 9 pages that link to Roche lobe, each with the reason it gives.All 9Broader topic 1Related 6Compared with 2Hill sphereCompared with: It is a related gravitational boundary, especially useful for mass transfer in close binaries.Stellar radiusCompared with: A star approaching this gravitational boundary need not have a spherical photospheric radius.