行星状星云

Planetary nebulas - so called because some of them resemble a planet when viewed through a small telescope - are produced in the late stages of a sun-like star's life.

行星状星云得名的原因是外观在小望远镜中类似行星，是类太阳恒星在演化后期产生的。

Planetary nebulas - so called because some of them resemble a planet when viewed through a small telescope - are produced in the late stages of a sun-like star's life.

因其外观在小望远镜中类似行星，故名行星状星云。它们产生于类太阳恒星生命的最后阶段。

Of course , in this well-studied example of a planetary nebula , the glowing material does not come from planets .

当然，这个已被仔细研究了的行星状星云范例，其中炽热的物质不是来源于行星。

Of course, in this well-studied example of a planetary nebula , the glow in g material does not come from planets.

当然，这个已被仔细研究了的行星状星云范例，其中炽热的物质不是来源于行星。

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.

但事实并非如此。螺旋星云事实上已经是已被广泛研究的行星状星云的很好的例子。它是类太阳恒星在寿终时所演变成的。

This image from the Hubble Space Telescope reveals theCat's Eye Nebula to be one of the most complex planetary nebulae known.

这张来自哈伯太空望远镜的影像，透露出猫眼星云是现知结构最复杂的行星状星云之一。

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

行星状星云一个由来自中心濒临死亡恒星所释放出的气体组成的正在膨胀的星云。

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

这种辐条结构，似乎表明螺旋星云本身是一个老切高度演化的行星状星云。

The white dot at the Helix's center is this Planetary Nebula 's hot , central star .

螺旋星云中央的白点就是这个行星状星云炽热的中央星。

The Hubble Space Telescope captured this image of the Stingray Nebula, the youngest known planetary nebula.

哈勃太空望远镜捕捉到了这幅黄貂鱼星云的图像，它是目前已知的最年轻的行星状星云。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了