星云

In the General History of Nature and Theory of the Heavens (1755), Kant laid ou t the Nebular hypothesis, in which he deduced that the Solar System formed from a large cloud of gas, a nebula.

在《宇宙发展史概论》中，康德提出了&星云假说&，认为太阳系源自一大团气体星云。

In fact, the bright star near the center of this nebula is likely only a few hundred thousand years old, powering the nebular glow as it clears out a cavity in the molecular cloud\'s star forming dust and gas.

实际上，该星云中央附近的明亮恒星的年龄可能仅仅几十万岁，它们引起星云发光并在分子云的恒星形成的尘埃和气体中清扫出一片空洞。

Meditations of evolution increasingly vaster: of the moon invisible in incipient lunation, approaching perigee: of the infinite lattiginous scintillating uncondensed milky way, discernible by daylight by an observer placed at the lower end of a cylindrical vertical shaft 5000 ft deep sunk from the surface towards the centre of the earth: of Sirius 10 lightyears (57,000,000,000,000 miles) distant and in volume 900 times the dimension of our planet: of Arcturus: of the precession of equinoxes: of Orion with belt and sextuple sun theta and nebula in which 100 of our solar systems could be contained: of moribund and of nascent new stars such as Nova in 1901: of our system plunging towards the constellation of Hercules: of the parallax or parallactic drift of socalled fixed stars, in reality evermoving wanderers from immeasurably remote eons to infinitely remote futures in comparison with which the years, threescore and ten, of allotted human life formed a parenthesis of infinitesimal brevity.

347关于宇宙日益扩大进化的冥想：新月期的月亮，即使在近地点也看不见。从地表向地轴挖掘纵深五千英尺的圆筒状垂直轴，一个观察者呆在轴底儿上，就连白昼也辨认得出那漫无止境、网络状、亮光闪闪、非凝结性的银河。天狼距地球十光年（五七、000、000、000、000英里）；体积大于地球九百倍；大角；岁差运动；有着&猎户&腰带、六倍于太阳的&伐二&以及星云的猎户座，星云中能容纳我们的一百个太阳系；死去的和新生的星宿，例如一九0 一年的那颗&新星&我们的太阳系正朝着武仙座冲去；所谓恒星的视差或视差移动，也就是说，实际上恒星是在不断地从无限遥远的太古朝无限遥远的未来移动着。相形之下，人的寿命充其量才七十年，不过是无限短暂的一段插曲而已。

The Trifid, also known as M20, is only about 300,000 years old, making it among the youngest emission nebulae known.

三裂星云又名M20，年龄大约是三十万年，是已知最年轻的发射星云之一。

Explanation: Clouds of glowing gas mingle with dust lanes in the Trifid Nebula, a star forming region toward the constellation of Sagittarius.

说明：炽热的气体云混杂着黑暗的尘埃带出现在三裂星云内，该星云是人马座内的一个恒星形成区域。

Theexpansive M8, over a hundred light-years across, is also known as theLagoon Nebula while M20's popular monikeris the Trifid.

庞大的M8大小超过一百光年，又被称为是礁湖星云，而M20的著名昵称为三裂星云。

The Trifid is a little dimmer than the Lagoon.

三裂星云比礁湖星云稍微暗一些。

Mountains of opaque dust appear on the right, while other dark filaments of dust are visible threaded throughout the nebula. A single massive star visible near the center causes much of the Trifid's glow.

此外，影像右方有山峰状的浓密尘埃云，以及散布在星云各处的尘埃丝带，而影像中央的那颗大质量恒星提供了三裂星云发出辉光的能源。

The greater nebula, also known as M8 and NGC 6523, is named "Lagoon" for the band of dust seen to the left of the open cluster's center.

而更大的礁湖星云还包含了 M8，或叫 NGC 6523。在这个开放星群中心的左边有一条尘埃带，因此它被命名为&礁湖星云&。

A X, _* i 27、 When the Moon in Opposition to the Sun is joined with nebulous stars, the Native will have some defect in his sight; if the Moon in the Seventh be afflicted by both the Infortunes, and if their rays are very strong he will be blind."

盘中月亮与太阳对冲，且伴有星云的影响，会对盘主的视力造成障碍；若月亮落在第7宫同时被凶星和星云刑伤，且凶星影响力很强时，则存在致盲的可能。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。