1.  stellar
2.  sidereal

• 1. 恒星的: sidereal
• 2. 恒星的体积: Star sizes
• 3. 恒星的颜色: Star coLours

更多释义

• 1.视差原理可以扩展到测量地球到恒星的距离。
  The parallax principle can be extended to measure the distances to the stars.
  dict.yoduao.com
• 2.我们在地球上看到的其实是来自恒星的电磁辐射。
  What we are seeing from earth is actually electromagnetic radiation that's coming from stars.
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• 3.估计恒星的年龄需要用到它们如何存在与消亡的理论。
  Estimates of stars' ages depend on theories of how they live and perish.
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