stellarspectrum

例句：

1. 1.The astronomer used a telescope to observe the star spectrum.
   天文学家用望远镜观察恒星光谱。
2. 2. The researcher found that the star spectrum showed signs of life.
   研究者发现恒星光谱显示出生命的迹象。
3. 3. The star spectrum revealed new details about the galaxy's formation.
   恒星光谱揭示了银河系形成的新细节。