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brown dwarf
英 [ˌbraʊn ˈdwɔːf]

  • 棕矮星：一种天体物体，比普通恒星要小得多，并且质量不足以维持核聚变，但温度足够高以至于能够辐射能量，尤其是红外波长的能量。

网络释义专业释义英英释义

  褐矮星

报道说，褐矮星（Brown dwarfs）是一种演化失败的恒星天体，其体积大于行星但要比恒星小很多。

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  棕矮星

棕矮星（Brown dwarf）是类恒星天体的一种，质量约为5至90个木星之间。与一般恒星不同，棕矮星由质量不足，其核心并不会融合氢原子来发光发热，无法成为...

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短语

proto-brown dwarf 原褐矮星

brown dwarf star 棕矮星

brown dwarf desert 褐矮星沙漠

dwarf brown layer 矮小型褐壳蛋鸡

 更多收起网络短语
  • 棕矮星
    褐矮星

·2,447,543篇论文数据，部分数据来源于NoteExpress

Brown dwarf

  • abstract: Brown dwarfs are substellar objects too low in mass to sustain hydrogen-1 fusion reactions in their cores, unlike main-sequence stars, which can. They occupy the mass range between the heaviest gas giants and the lightest stars, with an upper limit around 75 to 80 Jupiter masses (MJ).

以上来源于: WordNet

 柯林斯英汉双解大词典 

brown dwarf

  • 1. 

    N a type of celestial body midway in mass between a large planet and a small star 褐矮星

双语例句权威例句

  • youdao

  • Astronomers have named the brown dwarf "WD 0806-661 b".

    天文学家将这颗“褐矮星”命名为“WD 0806 - 661 B”号。

    youdao

  • Even the brown dwarf COROT-3b (22 MJ) is estimated to be about the volume of Jupiter.

    甚至褐矮星corot - 3b(22倍木星质量)的估计体积也与木星相差无几。

    youdao

更多双语例句

  • The planet orbits its host star, or brown dwarf, with an orbital radius similar to that of Venus.

    BBC: Tiniest extrasolar planet found

  • If the new object were a captured alien, it could give astronomers their first good look at an extra-solar planet, or a brown dwarf if that is what it turns out to be.

    ECONOMIST: X marks the spot

  • Mr. MIKE BROWN (California Institute of Technology): The largest dwarf planet, please.

    NPR: Pluto, the Un-Planet?

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