查询词典 light years

The new technique reduced the distance ladder to three "rungs":(1) The distance to galaxy NGC4258 is measured using straightforward geometry and Kepler's laws;(2)Cepheids in six more distant galaxies are used to calibrate the luminosity of Type Ia supernovae;(3) The Hubble constant is measured by observing a brighter milepost marker, Type Ia supernovae, in more distant galaxies hundreds of millions of light-years away, embedded in the expanding universe.

这种新技巧简化了距离跳跃为三个"阶梯"：1、星系NGC 4258的距离采用开普勒定律和简单直接的几何方法精确测量；2、在6个更远的星系中的造父变星用来校准Ia超新星的光度；3、深嵌于数亿光年外的膨胀宇宙中的星系中的Ia超新星——一种遥远而明亮的量天尺，被用于精确测定哈勃常数。

The nucleus shows its own extraordinary and distinct "grand-design" spiral structure that is about 3,300 light-years (1 kiloparsec) long.

但实际上，新近的照片表明小个头的NGC 5195已经从涡状星系身后闪过，现在它们正在相互远离。

In the core of the larger spiral structure of NGC 1300, the nucleus shows its own extraordinary and distinct "grand-design" spiral structure that is about 3,300 light-years (1 kiloparsec) long.

红超巨星，蓝超巨星，星团和恒星形成区在旋臂中清晰可辨，尘埃带则描绘出了星系盘和旋棒的详细结构，甚至透过致密区域都能看得到众多遥远的背景星系。

It orbits one of a pair of stars 450 light years away, in the constellation Lacerta, circling its host every few days.

该行星围绕蝎虎座一对恒星中的其中一颗运行，距离地球450光年。

Glowing like a multi-faceted jewel, the planetary nebula IC 418 lies about 2,000 light-years from Earth in the direction of the constellation Lepus.

像一颗精心雕琢的宝石，行星状星云IC 418坐落在距地球2，000光年的天兔座内。

Eleven other stellar systems within 100 Light Years of Lux have now been charted and settled by Deltan explorers.

在 Lux 的100光年内的11个其他的恒星系统应被德尔塔探索者探测和进驻。

Megaparsec -1, then the Hubble distance of 5.5 billion seconds gap, that is 18 billion light-years away.

若取H为55KM.D秒－1。兆秒差距－1，则哈勃距离为55亿秒差距，即180亿光年。

In the past, astronomers have argued that the hubble constant is between 40 and 90 kilometers per second per megaparsec (one megaparsec is 3.26 million light years).

在过去，天文学家认为哈勃常数在每百万秒差距每秒40到90千米之间(一百万秒差距为三百二十六万光年)。

The cluster lies 2600 light-years from Earth in the constellation of Monoceros.

这棵"树"实际是距离地球2600光年的麒麟星座。

The Cone Nebula resides 2,500 light-years away in the constellation Monoceros.

这个星云总长度达7光年，位于2500光年以外的麒麟座星系群。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。