• See photos of new planetary nebula.

    查看新的关于行星云团照片

    article.yeeyan.org

  • The Eskimo nebula is clearly a planetary nebula.

    爱斯基摩星云显然一个行星星云。

    www.youdict.com

  • L the Ring nebula in Lyra is the best-known of the planetary nebulae.

    l天琴座中的环状星云著名行星状星云。

    article.yeeyan.org

  • The Cat's Eye nebula (NGC 6543) is one of the best known planetary nebulae in the sky.

    猫眼星云(NGC 6453)天空著名行星星云之一。

    article.yeeyan.org

  • Our own sun will blossom into a planetary nebula when it dies in about five billion years.

    大约50亿年后我们太阳死去也会变成行星状星云

    article.yeeyan.org

  • The sands of time are running out for the central star of this hourglass-shaped planetary nebula.

    在这一酷似沙漏形状星云内,“时间”即将中央之中流逝殆尽。

    www.ebigear.com

  • The spoke features seem to indicate that the Helix Nebula is itself an old and evolved planetary nebula.

    辐射线的特征似乎说明螺旋星云本身古老;历经了行星状星云的演化过程。

    bbs.astron.ac.cn

  • A planetary nebula is an expanding cloud of gas ejected from a star that is nearing the end of its life.

    行星星云一个来自中心濒临死亡恒星所释放出气体组成的正在膨胀的星云。

    cdn.astronomy.com.cn

  • Hence, it is rare that an open cluster survives long enough for one of its members to form a planetary nebula.

    因此一个疏散星团很少能够存活到内部某个成员变成行星状星云。

    article.yeeyan.org

  • Also known as Abell 21, this Medusa is an old planetary nebula some 1, 500 light-years away in the constellation Gemini.

    称作阿贝尔21水母星云双子座中一个1500光年远的年老行星星云

    article.yeeyan.org

  • In tribute to Hubble's longest-running optical camera, a planetary nebula has been imaged as WFPC2's final "pretty picture."

    这个行星状星云的照片看成是WFPC2最后的“漂亮图片”,这个哈勃历史最悠久光学相机表示敬意。

    article.yeeyan.org

  • Such stars eventually blow off the material of their outer layers, which creates an expanding shell of gas called a planetary nebula.

    这样恒星最终它们外层物质形成了向扩展的气体盔甲名为行星状星云。

    article.yeeyan.org

  • The hot core collapses and begins to pulsate, eventually shedding its outer layers of gas to set the stage for the birth of a planetary nebula.

    恒星高温核心坍缩开始有规律的振动,最终气体外层迸散,行星星云的形成提供了有利条件。

    www.kle100.cn

  • That surge could cause the sun to blow even more material into space, adding to its colorful, expanding shell of gas, which astronomers call a planetary nebula.

    能量激增可能会使太阳更多物质太空送入色彩斑斓的、正在膨胀气体外围之中。天文学家们这种膨胀的气团称为行星状星云。

    article.yeeyan.org

  • Of course, gazing into the Cat's Eye, astronomers may well be seeing the fate of our sun, destined to enter its own planetary nebula phase of evolution ...

    当然文学家在观察“猫眼”时,就可能看到我们太阳命运最终注定进入行星星云演化阶段……

    article.yeeyan.org

  • This particular planetary nebula, pictured above and designated Shapley 1 after the famous astronomer Harlow Shapley, has a very apparent annular ring like structure.

    上图中的行星状星云叫做Shapley1著名天文学家Harlow Shapley的名字命名,它非常明显环状结构。

    article.yeeyan.org

  • In a few million years, as one of the central stars becomes further depleted of nuclear fuel, the Red Rectangle nebula will likely bloom into a planetary nebula.

    未来的数百万年中中心恒星中的会耗尽核反应能源,到时候矩形星云很可能变成一个行星状星云。

    zhan.renren.com

  • But this well-studied example of a planetary nebula, produced near the end of the life of a sun-like star, is now understood to have a surprisingly complex geometry.

    但是这个深入研究行星状星云范例,映射类星体临近死亡的状态;被认为是个令人惊讶极其复杂的几何学。

    bbs.astron.ac.cn

  • NGC 5189 is a planetary nebula with an oriental twist. Similar in appearance to a Chinese dragon, these red and green cosmic fireworks are the last swansong of a dying star.

    NGC 5189是个行星星云,它是颗恒星垂死最后表演,它具有少见的东方神物——中国外形

    www.astronomy.com.cn

  • In fact, 21st century astronomers would identify it as a planetary nebula, but it's not a planet either, even though it may appear round and planet-like in a small telescope.

    21世纪天文学家分类行星状星云但是实际上不是行星,只是小型望远镜观测时,它具有类似行星的圆浑外观而已。

    zuci.chaziwang.com

  • Shining with light from the central star reflected by dust, the frigid Boomerang Nebula is believed to be a star or stellar system evolving toward the planetary nebula phase.

    寒的回飞星云发光,是因为它尘埃反射了来自中心的星光,天文学家认为它正在演化行星状星云阶段的恒星恒星系统

    bootes.lamost.org

  • They needed to show that the molecules are in space, that they have a unique and interesting molecular structure, and that they are associated with a faraway planetary nebula.

    他们需要表现出来的几个关键点包括:首先,这种分子太空中;其次,它们独特有趣结构;再者,它们和遥远行星状星云有着密切联系。

    article.yeeyan.org

  • Since open star clusters disperse after only a few hundred million years, this one must be exceptionally old to have one of its member stars evolve to the planetary nebula stage.

    因为仅仅数百万年之后疏散星团开始消散,可能因为这个星团异常年老其内颗恒星已经演变到了行星状星云阶段。

    bj.astronomy.com.cn

  • While the planetary nebula phase is thought to last for around 10, 000 years, astronomers estimate the age of the outer filamentary portions of this halo to be 50, 000 to 90, 000 years.

    虽然行星状星云阶段持续1万天文学家估计丝状物质年龄5万至9万年间

    article.yeeyan.org

  • The earth developed from a planetary embryo in the solar nebula into the third planet of our solar system.

    地球早期太阳星云行星成长太阳系第三行星

    3us.enghunan.gov.cn

  • The earth developed from a planetary embryo in the solar nebula into the third planet of our solar system.

    地球早期太阳星云行星成长太阳系第三行星

    3us.enghunan.gov.cn

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