cometary head

• 彗头

cometary head的用法和样例：

例句

1. To the surprise of many Northern Hemisphere observers the tail of Comet McNaught remained visible even after the comet's head set ahead of the Sun.
   令许多北半球观测者意想不到的是，当彗头在日落前就不见了，但还能看到麦克诺特彗星的彗尾。