Astraea in Greek and Roman Biography and Mythology
（*)Astrai=a), a daughter of Zeus and Themis, or according to
others, of Astraeus by Eos. During the golden age, this star-
bright maiden lived on earth and among men, whom she blessed ;
but when that age had passed away, Astraea, who tarried
longest among men, withdrew, and was placed among the stars.
(Hygin. Poct. Astr. 2.25 ; Eratost. Catast. 9; Ov. Mct.
1.149.) - A Dictionary of Greek and Roman biography and
mythology, William Smith, Ed.
Astraea in Wikipedia
In Greek mythology, Astrĉa or Astrea (Ancient Greek:
Ἀστραῖα; English translation: "star-maiden") was a daughter
of Zeus and Themis or of Eos and Astraeus. She and her mother
were both personifications of justice, though Astrĉa was also
associated with innocence and purity. She's always associated
with the Greek Goddess of justice, Dike, who used to live in
Earth but then left it since she was sickened by human greed.
Astrĉa, the celestial virgin, was the last of the immortals to
live with humans during the sagacious Bronze Age (the third
age, after the Utopian Golden Age and defective Silver Age) in
the old Greek religion's five deteriorating Ages of Man.
Fleeing from the new wickedness of humanity, she ascended to
heaven to become the constellation Virgo; the scales of
justice she carried became the nearby constellation Libra,
reflected in her symbolic association with Justitia in Latin
culture. In the Tarot, the 8th card, Justice, with a figure of
Justitia, can thus be considered related to the figure of
Astrĉa on historical iconographic grounds...