horizontal-branch star

例句：

1. 1.This star is located in the constellation of Orion.
   这颗星位于猎户座。
2. 2.The discovery of this star has sparked excitement among astronomers.
   这一发现激发了天文学家们的兴奋。
3. 3. Horizontal branch stars are a rare type of star that form from the remains of massive stars.
   水平分支星是一种罕见的恒星类型，由巨大恒星的残骸形成。