noun
comet hunter
Refers to a person who searches for comets, especially an amateur astronomer dedicated to discovering new comets.
彼は有名なコメットハンターで、これまでに三つの彗星を発見した。
He is a famous comet hunter who has discovered three comets so far.
Variant with interpunct; less common but still seen.
Loanword from English 'comet hunter'.