出典:Wikipedia
出典:『Wikipedia』 (2011/07/01 18:15 UTC 版)
Beta Cephei variables are variable stars which exhibit variations in their brightness due to pulsations of the stars' surfaces. The point of maximum brightness roughly corresponds to the maximum contraction of the star. Typically, Beta Cephei variables change in brightness by 0.01 to 0.3 magnitudes with periods of 0.1 to 0.6 days. These stars are main sequence stars of masses between about 7 and 20 M
.