astronomical camera

例句：

1. 1. The astronauts spent a month in space to study the planet Mars.
   宇航员花了一个月在太空研究火星。
2. 2.The astronomers have discovered several new celestial bodies.
   天文学家们发现了几个新的天体。
3. 3. The celestial bodies are moving at different speeds due to their different distances from the sun.
   由于它们离太阳的距离不同，这些天体以不同的速度移动。