红矮星gliese 581只有太阳质量的30%，比起太阳系的外层行星，该系统最外层的行星距离红矮星要更近。
The Gliese 581 star has about 30% the mass of our sun, and the outermost planet is closer to its star than we are to the sun.
它不会把太阳光折射成彩虹，但是它可以使最底部的光变得更红一些，而最顶部的光看上去像蓝绿色。
It doesn't turn the sun into a rainbow, but it makes the lowest part of the sun seem a bit more red, and the top of the sun seem greenish blue.
它不会把太阳光折射成彩虹，但是它可以使最底部的光变得更红一些，而最顶部的光看上去像蓝绿色。
It doesn't turn the sun into a rainbow, but it makes the lowest part of the sun seem a bit more red, and the top of the sun seem greenish blue.
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