| 1. | Bright stars are found at the top of the diagram and faint stars at the bottom .
亮星在图的顶部，暗星则在底部。 |
| 2. | It had been identified as a faint star on a number of sky maps prepared during the preceding hundred years .
在以前的几百年中积累下的一些天图中，已经证实它是颗暗星。 |
| 3. | The limiting magnitude must be entered on the data sheet . below is a table listing the magnitudes of the major stars in the constellation ursa minor
在填写记录表的时候，需要填上当时可见到的最暗星等，附图为小熊座各主星及其星等，可作为参考之用。 |
| 4. | Scientists have found compelling evidence that the sun has a baby brother , a dark star whose eccentric orbit is re o ible for periodically showering the earth with comets and meteorites
科学家们已发现明显的迹象表明：太阳有一个小弟弟，它是一颗暗星，其偏心轨道导致彗星群和流星雨周期性降落地球。 |
| 5. | Scientists have found compelling evidence that the sun has a baby brother , a dark star whose eccentric orbit is responsible for periodically showering the earth with comets and meteorites
科学家们已发现明显的迹象表明：太阳有一个小弟弟，它是一颗暗星，其偏心轨道导致彗星群和流星雨周期性降落地球。 |
| 6. | Stationary photography should be supplemented with visual observation . by comparing these two sets of data , we can deduce the exact positions where the meteors appear , and the magnitude of the faintest meteors that are captured
摄影要与目视观测互相配合，记下同一天区的流星资料，以便进行比较，可从底片上倒算出其实际位置，又可得知被拍到的流星的最暗星等。 |
| 7. | The dark star ? ? named nemesis by astronomers ? ? is thought to be a brown dwarf " that i round the sun in an orbit so large it is measured in light years , the distance light travels in a year , equivalent to about 6 , 000 billion miles
这颗被天文学家叫做复仇女神星的暗星被认为是一颗"褐矮星" ，它围绕太阳旋转的轨道大得要用光年计量，光年是光在一年中走过的距离，大约等于6万亿英里。 |
| 8. | The dark star ? ? named nemesis by astronomers ? ? is thought to be a brown dwarf " that spins round the sun in an orbit so large it is measured in light years , the distance light travels in a year , equivalent to about 6 , 000 billion miles
这颗被天文学家叫做复仇女神星的暗星被认为是一颗"褐矮星" ，它围绕太阳旋转的轨道大得要用光年计量，光年是光在一年中走过的距离，大约等于6万亿英里。 |
| 9. | For a map with a very wide field of view you will probably only want to display bright stars and constellation lines ; as you zoom in on a small area of the sky , you ' ll want to show fainter stars , star labels , deep sky objects from different catalogs , and so on
在观看一个较大天区的时候，你可能只想显示亮星和星座连线，而在你放大一小块天区时又希望能看到暗星，恒星说明，或者不同星表中的深空天体等等。 |
