But the red dwarf is 50 times cooler than the sun.

但这颗红矮星的温度要比太阳低50倍。

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What they revealed is a planet circling the red dwarf star, Gliese 581.

它们显示有一颗围绕着Gliese 581红色侏儒星的星球。

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Astronomers figure the red dwarf star would hang in the sky at a size 20 times larger than our moon.

天文学家认为太空中红矮星的大小比月球大20倍。

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The surface of these planets would be quite different, due to the light from the red dwarf.

FORBES: No, Scientists Did Not Find 10 Billion Earth-Like Planets In The Galaxy

The small size of the red dwarf stars, typically with spectral types K and M, gives a greater relative drop in brightness when low-mass planets pass in front of them, making it easier to search for planets around them.

ENGADGET: 9-gigapixel image of the Milky Way reminds us just how small we truly are

One interesting result revealed in the new data is the large number of faint red dwarf stars.

ENGADGET: 9-gigapixel image of the Milky Way reminds us just how small we truly are