The mass luminosity relation Lo Mo describes the mathematical relationship between luminosity and mass for main sequence stars. It describes how a star with a mass of 2Mo would have a luminosity of Do while a star with a luminosity of 3,160 would have an approximate mass of Mo. Round to the nearest 0.1 where appropriate. Tips: Think of Ro , To, and Lo as units. R 12 = 4 For example, 2Ro is a star with twice the radius of the Sun. If R=2R. then Ro