galaxie irrégulière de type I
/ɡalaksˈi iʁeɡyljˈɛʁ də- ˈtip ˈi/
n
English: type I irregular galaxy · I型不规则星系
Sens：Rare type of galaxy that seems to possess spiral arms without displaying a specific symmetry.
English: type I irregular galaxy · I型不规则星系