銀河 ぎんが系外 けいがい星雲 せいうんなら
gingakeiga iseiu nnara

Noun
Da Copula

The "-nara" conditional form ("if/when…") of 銀河系外星雲

1. If/when the galactic nebula…; If there is a galactic nebula…

Nara Conditional
Astronomy