说明:北天的仙王座内,到处散布著星团、辉光云气、及黝黑的尘埃云。
Explanation : Star clusters , glowing nebulae and dark dust clouds abound in Cepheus , royal constellation of the northern hemisphere .
关于仙王座β型变星的脉动激发机制
On the excitation mechanism of pulsation for β Cephei stars