恒星

A method to acquire and track the beacon for deep space optical communication system is proposed, which uses star as beacon, and controls the direction of down beam based on the absolute position in inertial frame, the ephemeris of aircraft and earth and the attitude of aircraft.

提出一种深空光通信系统的信标捕获、跟踪方案，该方案是以恒星作为信标，根据恒星在惯性坐标系中的绝对位置信息，基于航天器和地球星历表、航天器的姿态信息来进行下行光束瞄准方向的精确控制。

It is still unknown which star or stars ionize the red-glowing hydrogen gas.

现在还不知道哪颗恒星或者是哪些恒星电离了发红光的氢气。

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。

"We're on to something new, that the most massive stars are probably like this," Moffat told SPACE.com This is a new revelation, I think. We should look for Wolf-Rayet stars like this.

" "我们正在进行新的研究，最大型的恒星很可能跟这种恒星一样，"莫法特告诉《太空网》的记者说，"我认为这是一个新发现，我们应该寻找象这样的沃尔夫-拉叶星。

Like the common household items still life painters often choose for their subjects, the clouds of gas, dust, and hot stars pictured here are also commonly found in this setting - a massive, star-forming molecular cloud in the constellation Monoceros .

像常见的家用物品画作一样，天体静物画家往往选择的项目如下：气体云，尘埃，和普遍存在的炙热恒星---镶嵌在麒麟座中一个大规模的恒星形成分子云。

Stellar Nursery in the Rosette Nebula -- This image from the European Space Agency's Herschel SpaceObservatory shows the cloud associated with the Rosette Nebula, astellar nursery about 5,000 light-years from Earth in the Monoceros, orUnicorn, constellation.

恒星苗圃的玫瑰星云-这天文台图片来自欧洲航天局赫歇尔空间显示，麒麟星座云相关的玫瑰，或星云，一麒麟座恒星托儿所的约5000光年，从地球研究。

Like the common household items still life painters often choose for their subjects, the clouds of gas, dust, and hot stars pictured here are also commonly found in this setting - a massive, star-forming molecular cloud in the constellation Monoceros.

静物画家经常选择家居物品作为题材，类似的在麒麟座这个大质量恒星诞生云里，云气、尘埃和炽热恒星也都是随处可见的天体。

Stellar Nursery in the Rosette Nebula -- This image from the European Space Agency's Herschel Space Observatory shows the cloud associated with the Rosette Nebula, a stellar nursery about 5,000 light-years from Earth in the Monoceros, or Unicorn, constellation.

恒星苗圃的玫瑰星云-这天文台图片来自欧洲航天局赫歇尔空间显示，麒麟星座云相关的玫瑰，或星云，一麒麟座恒星托儿所的约5000光年，从地球研究。

The route of stars in the cluster, moving quickly, may be influenced by the gravity of black wholes.

恒星簇中的恒星快速移动，它们的路径将受到黑洞重力的影响。

Fantastic ridges and swept back shapes strongly suggest that energetic radiation and shock waves from NGC 602's massive young stars have eroded the dusty material and triggered a progression of star formation moving away from the cluster's center.

梦幻的脊状尘埃和云气说明了在NGC 602 里面，从大质量年轻恒星发出的高能的辐射和震波已经影响到附近的尘埃，并从星云中心往外触发了一连串的恒星形成。

Objective To investigate the effects of interleukin-1 β converting enzyme gene on the biologic characteristics of ovarian cancer cells.

目的 探讨白细胞介素-1 β转换酶的表达，对卵巢癌细胞生物学特性的影响。

Campylobacter: This illness is the most commonly identified cause of diarrheal illness in the world.

弯曲：这种病是最常见的原因查明腹泻病，在世界上。