About 200 light-years distant, Mirach is a red giant star, cooler than the Sun but much larger and so intrinsically much brighter than our parent star.

• 距离我们大约200光年，奎宿九是一颗红巨星，其表面温度要比我们的太阳低，但在体积和亮度上要比太阳都大的多。