星図 is read as せいず (seizu) and means star map.
せいず
seizu
ずぼしにあたる
to hit the bull's-eye
ずぼしをさす
to hit the nail on the head
ほし
bullseye
せいざ
constellation
ほしうらない
astrology
ほしぞら
starry sky
せいうん
galaxy
せいだん
star cluster
せいきたい
astral body
ほしとりひょう
chart used to keep track of a wrestler's records during the tournament
ほしぐちどうぶつ
sipunculan (any worm of phylum Sipuncula)
せいかんくうかん
interstellar space