Quick answer
Astraea is a girl name with Latinized roots meaning "star".
Meaning and history
Latinized form of the Greek Ἀστραία (Astraia), derived from Greek ἀστήρ ( aster ) meaning "star". Astraea was a Greek goddess of justice and innocence. After wickedness took root in the world she left the earth and became the constellation Virgo.
Notes and context
Usage: greek mythology | Ancient Greek: Ἀστραία