- n. 【天】太阳系外行星
- [网络] 地外行星;外太阳行星;外系行星
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- Burrows thinks that chthonian exoplanets may not turn out to be all rock
柏罗斯认为,地狱行星或许不完全是固态的。 - It should be capable of detecting exoplanets smaller than the earth
这架望远镜能够侦测到体积比地球还小的系外行星。 - It has been designed to spot exoplanets bigger than twice the size of the earth
这艘太空船是用以捕捉体积在地球两倍以上的系外行星的踪影。 - Most of the exoplanets discovered so far are much closer to their host stars than the ice line
至今所发现的系外行星中,大多行星同主星的距离小于冰线。 - Since 1991 observers have discovered some 120 exoplanets ? worlds outside our solar system
自1991年起,天文学家已在我们太阳系外的世界,发现了大约120个系外行星。 - He thinks exoplanets are pulled towards the star by the dust and that when the dust runs out, the exoplanets stop moving
天文学家们认为,他们应该是从外层轨道移动到里面去的。 - He thinks exoplanets are pulled towards the star by the dust and that when the dust runs out, the exoplanets stop moving
天文学家们认为,他们应该是从外层轨道移动到里面去的。 - If so, then some of the mostmassive exoplanets found to date might better be classified as failed stars
如果真是这样,那么我们把现在所发现的大多数大质量的系外行星规为夭折恒星。 - It could also help illuminate how giant, gaseous exoplanets often come to orbit their parent stars so closely
还有助于说明,巨大的气态外部行星如何这么近地围绕起源恒星的轨道运行。 - Another version has it that large and small protoplanetary discs of the same mass may form exoplanets differently
另一种说法认为大小不一但质量相同的原行星盘就可能形成各自不同的系外行星。