astrocompass

例句：

1. 2. 导航星图；星图导航3.
   用于天文的
2. 1. The astronaut used the astrocompass to navigate through the dark night sky.
   宇航员使用星图在黑暗的夜空中导航。
3. 2. The astronomer drew an astrocompass to plot the path of the comet.
   天文学家用星图绘制了彗星的路径。
4. 3. The astronaut studied the astrocompass and learned how to use it for navigation.
   宇航员学习了如何使用星图进行导航。