| 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. | Like in the swan , but with two d ' s
就好象天鹅座，但是中间有两个d |
| 3. | 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。 |
| 4. | 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。 |
| 5. | 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。 |
| 6. | 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 |
| 7. | 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 |
| 8. | 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。 |
| 9. | The scent of grass , the singing of birds . take a scroll , be comforted by nature . . . . .
专人讲解天文科普知识，指导观星，若天气晴朗，我们可以目视天琴座的织女星，天鹅座的天津四，天鹰座的牛郎星 |
| 10. | 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。 |
