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This is Scientific American 60 Secomds, Space. I'm Clara Moskowitz, got a minute?
這里是科學美國人60秒，太空系列。我是克拉拉·莫斯科維茲。
Call this story, "A star is stillborn."
這是一個“胎死腹中”的恒星的故事。
The object is a brown dwarf, which started off the same way that more conventional stars form, but which lacked the mass required for nuclear fusion to ignite and radiate starlight. What resulted was a body somewhere in between a star and a planet.
今天我們要講述的是褐矮星，它和其他恒星的形成過程沒什么兩樣，但因質量不夠大，不足以在核心點燃聚變反應的氣態天體形成燃燒的恒星。褐矮星是質量介于最小恒星與最大行星之間的天體。
It was spotted recently by NASA's WISE and Spitzer space telescopes. And it's been dubbed WISE J085510.83-071442.5. So let's not say its name again, okay?
美國航空航天局的科學家借助WISA和Spitzer太空望遠鏡觀測到了褐矮星。這一褐矮星已經被正式編號為WISE J104915.57-531906。太拗口了，我們別再提他的名字了，好吧。
At only about three to 10 times the mass of Jupiter, this WISE guy is small even for a brown dwarf. It's the fourth-nearest star system, just 7.2 light-years away. And it's freezing—about as cold as the North Pole.
這顆僅比木星大兩倍到九倍的恒星和普通的褐矮星相比算是個“小不點”。是距離地球第四近的恒星系統，只有7.2光年的距離。恒星表面冷氣逼人，溫度堪與北極相比。
Temperatures on this body range from a frosty minus 54 to plus 9 degrees Fahrenheit. For comparison, the sun's surface is a toasty 10,000 Fahrenheit.
這顆恒星上的溫度最低可低至零下54華攝氏度，最高也只有零上9華攝氏度。我們再來看看太陽比較一下，太陽表面的溫度高達1萬華攝氏度！
Noticing such a cold object in space that radiates almost no light would be impossible with visible-light telescopes. Its dim thermal glow was just barely discernible to the infrared eyes of WISE and Spitzer. And its name ensures mostly continued anonymity.
用可見光望遠鏡想要觀測到這種幾乎不會釋放光的冰冷恒星是不太可能的。WISE和Spizer的紅外線鏡也只能依稀辨別褐矮星微弱的光芒。很少有人能記住這顆褐矮星拗口的名字，這也就確保了它的神秘性。
Thanks for the minute for Scientific American 60 Secomds, Tech. I'm Clara Moskowitz.
感謝收聽。
