| 1. | Cygnus x-3 is a binary x-ray source located at a distance of 10kpc .
天鹅座X-3是一个距离约10千秒差距的双重X射线源。 |
| 2. | Cygnus x - 1 is the oldest known case of a black hole candidate
天鹅座x - 1便是最早发现的怀疑黑洞。 |
| 3. | Image of cygnus x - 1 , the first stellar black hole candidate
天鹅座x - 1影像，可能是首个被发现的恒星状黑洞。 |
| 4. | Cygnus x - 3 is a binary x - ray source located at a distance of 10kpc
天鹅座x - 3是一个距离约10千秒差距的双重x射线源。 |
| 5. | Bright constellations : lyra , aquila , cygnus , scorpius and sagittarius
容易辨认的星座：天琴座天鹰座天鹅座天蝎座及人马座 |
| 6. | The brightest star in the constellation cygnus , approximately1 , 630 light - years from earth
天津四，天鹅星在天鹅座最亮的一颗恒星，距地球大约有1 ， 630光年 |
| 7. | This isosceles triangle is composed of vega in lyra , altair in aquila and deneb in cygnus
这个等腰三角形分别由天琴座主星织女天鹰座主星牛郎及天鹅座主星天津四所组成。 |
| 8. | The central bright star hd 226868 is the binary companion of the black hole , currently undergoing mass loss to cygnus x - 1
中心亮星hd226868与该黑洞组成一个双星系统，目前其物质正被天鹅座x - 1吞噬。 |
| 9. | Over the next ten years , a new generation of telescopes will be launched into space more powerful than any before , they will peer into the cygnus constellation
在以后的10年内，将有比以往任何一代望远镜功能更强大的新一代天文望远镜给发射入太空，这些望远镜将深入探测天鹅星座。 |
| 10. | In modern radio astronomy , these radio celestial bodies are called " discrete sources ? cassiopeia a , cygnus a and taurus a are some examples of discrete sources . the letter " a " represents a strong radio source
在现代的射电天文学中，这些射电天体称作分立射电源，例如仙后座a ，天鹅座a和金牛座a等， a是代表强的射电源。 |
