恒星

Annie Jump Cannon, __a leading astronomer___ discovered so many stars that she was called "the census taker of the sky."

Annie Jump Cannon，一名主要的天文学家，发现了如此至多的恒星，因此被称为"天空人口调查员"。

Note for the first report,if in cental Wisconsin,Polaris should be at Azimuth 359°and Altitude 3°while Alderamin should be at Azimuth 3°and Altitude 19°.

留心第一份申报，假使在威斯康辛州中部，北极星应该是在359方位角的，高度是3度；而天钩五(注：仙王座α内的一颗恒星，英文的专属称号是Alderamin)应该是在3度，高度是19度。

Note for the first report if in cental Wisconsin Polaris should be at Azimuth 359° and Altitude 3° while Alderamin should be at Azimuth 3° and Altitude 19°.

细致第一份陈诉，假使在威斯康辛州中部，北极星应该是在359方位角的，高度是3度；而天钩五注：仙王座α内的一颗恒星，英文的专属称号是Alderamin）应该是在3度，高度是19度。

A black hole, like theone in Centaurus A, is formed when a massive star collapses from itsown gravity.

黑洞， 像在半人马座A星系的这一个，是当一个质量大的恒星因为自己的引力而塌缩后形成。

Hundreds of other x-ray sources—stellar black holes and neutron stars—also inhabit Centaurus A.

数百个其它放射线的来源――是恒星黑洞群和中子星座――同样位于人马座A部位。

Hundreds of other x-ray sources—stellar black holes andneutronstars—also inhabit Centaurus A.

数百个其它放射线的来源──是恒星黑洞群和中子星座──同样位于人马座A部位。

By choosing to observe stars that are known as Cepheid Variables he could more accurately make measurements.

通过有选择地观察恒星被称为cepheid变数，他能更准确地进行测量。

Hisfirst great discovery was made when he recognized a Cepheid variable star.

他的第一个伟大的发现是他观察到了可变恒星"瑟福尔的"。

Of the great nebula called Andromeda. Cepheid variable stars are stars whose brightness changes at

被称为瑟福尔的可变恒星的亮度都是在一个很有规律的时段里改变。

HD 1461 the star is located in Cetus, within about 76 light-years from Earth.

HD 1461恒星位于鲸鱼座内，距离地球大约为76光年。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。