Beta Canis Majoris variable star

Beta Canis Majoris stars are a type of pulsating variable star. These are intrinsically variable stars, meaning their total energy output fluctuates over time. They are characterized by high temperatures and spectral type B. Beta Canis Majoris stars often exhibit complex variations in spectral line shapes and intensities, as well as in their velocity curves and light output. Many of these stars have two periods of variation that are very close in duration, leading to observable beat phenomena in their radial velocities and spectral line shapes. Evidence suggests that stellar pulsations are the cause of their variability.1