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。
The smaller yellowish nebula (NGC 6729) surrounds young variable star R Coronae Australis.
娇小而微微泛黄的星云NGC 6729环绕在年轻变星南冕座R的周围。
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。
A type of variable star whose period of variation is tightly related to its intrinsic luminosity.
变星的一种，它的固有光度和它的光变周期有着紧密的联系。
The tiny but intriguing yellowish arc visible near the blue nebulae marks young variable star R Coronae Australis.
在蓝色星云附近，微小但迷人的微黄色弧状可见物标出了年轻可见恒星南冕座R星的位置。
American Association of Variable Star Observers.
美国变星观测者协会。
Welcome to the American Association of Variable Star Observers (AAVSO) Nova Search program.
欢迎访问美国变星协会新星搜索组。
Welcome to the American Association of Variable Star Observers (AAVSO) Nova Search program.
欢迎访问美国变星协会新星搜索组。
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