心宿二即是一颗巨星。
The giant star-forming region is about 1, 000 light-years across.这块由巨星组成的区域横跨约一千光年。
giant star S106IR lies near the waist of the hourglass. Astronomers estimate the star could be up to 15 times more massive than our sun.巨星S106IR位于沙漏的束腰位置,天文学家估计该恒星的质量可能是我们太阳质量的15倍。