semiregular variable star 半规则变星
variable star designation 变星命名
regular variable star [天] 规则变星
Cepheid variable star 造父变星 ; 变星
extrinsic variable star [天] 外因变星
eclipsing variable star [天] 食变星 ; 蚀变星
irregular variable star [天] 不规则变星
For 100 years astronomers have paid particular attention to a class of variable star known as the Cepheids.
过去100年来，天文学家特别注意一类称作“仙王座变光星”的恒星。
He studied the light curves of asteroids and thus their rotation, and also studied the variable star CZ Cassiopeiae, and the evolution of the orbit of Comet Halley.
张钰哲研究小行星的光变曲线和旋转、CZ仙后座变星以及哈雷彗星轨道的变化。
His first great discovery was made when he recognized a Cepheid variable star.
他的首次重大发现产生于他认识了一颗造父变星的时候。
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