This instrument is clear evidence of the links between the astrolabe and astrology. On one side is an astrolabe for a single latitude, and on the other an astrological volvelle, used to find the positions of planets and other celestial bodies, especially in relation to the traditional astrological houses.
"The mathematician and philosopher Hypatia of Alexandria was the daughter of the mathematician Theon Alexandricus (ca. 335–405) [the] last librarian of the Library of Alexandria. Around AD 400, she became head of the Platonist school at Alexandria. She taught philosophy and astronomy. The pupils included pagans, Christians, and foreigners. Murdered by a Christian mob after being accused of witchcraft and godlessness and of causing religious turmoil."
Sun Solar Body Ancient Astronomy Cartographic Illustrations Antique Vintage High Resolution Printable Graphic Img1868
Greek Muses In ancient Greece. The 9 Muses were considered sources of knowledge and providers of inspiration to creators of literature and art. Almost everyone should still have a shrine to honor them. Calliope (Epic Poetry) Clio (History) Erato (Love Poetry) Euterpe (Music) Melpomene (Tragedy) Polyhymnia (Hymns and sacred poetry) Terpsichore (Dance) Thalia (Comedy) Urania (Astronomy)