What does hoshikawa mean in japanese

Question

basically in this video game called ryuusei no rockman for nintendo DS, there is a character named Subaru Hoshikawa. I know that subaru is the name of a group of stars, and I know that the first kanji in his last name (hoshi) means star

so I am wondering what his full name means, subaru hoshikawa. The game sort of has an outer space theme so I am assuming that it has to do with stars and planets.

Answer 1

It means Galaxy generally speaking. It is not real Japanese family name but Just Manga hero's name.

Answer 2

It means "Star River"

Hoshi (星) means star, as you said. Kawa (川) is a suffix added to names of rivers. So Hoshikawa means Star River.

Answer 3

Star River.

Other acceptable kanji are:

干川~ drying river

星河~ star stream