hydrogen-deficient star

例句：

1. 1.The star is located in the constellation of Orion.
   这颗星位于猎户座。
2. 2.The discovery of this type of star could revolutionize our understanding of astrophysics.
   发现这种恒星可能会颠覆我们对天体物理学的理解。
3. 3. This star has been classified as a Type Ia supernova, marking its rapid expansion and cooling.
   这颗星被归类为Ia型超新星，表明其快速膨胀和冷却。