This page contains articles on the history, philosophy and techniques of Hellenistic astrology, including biographical information on specific ancient astrologers.

The History and Philosophy of Hellenistic Astrology

Articles on the history and philosophy of Hellenistic astrology.

• The Rediscovery of Hellenistic Astrology – Chris Brennan - Chronicles the rediscovery of Hellenistic astrology over the course of the past century.
• The Katarche of Horary – Chris Brennan – A paper on the origins of horary astrology, specifically addressing the issue of whether or not the practice of the subject originated in the Hellenistic tradition.
• Entry on Hellenistic Astrology in the Internet Encyclopedia of Philosophy – Marilynn Lawrence - An excellent overview of the relationship between Hellenistic astrology and some of the different philosophical schools in the ancient world.

The Techniques of Hellenistic Astrology

Articles on techniques and practical concepts in Hellenistic astrology.

• Whole Sign Houses – An article on the original form of house division that was used in the Hellenistic tradition.
• The Concept of Sect – A concept that was used by Hellenistic astrologers to distinguish between day and night charts.
• The Theoretical Rationale Underlying the Seven Hermetic Lots – This paper explores the seven ‘Hermetic’ Lots that appear in the work of the 4th century astrologer Paul of Alexandria and his commentator Olympiodorus, and proposes a theoretical rationale underlying their construction.
• How to Calculate the Lot of Fortune – This is a video that demonstrates how to calculate Lots visually, using the Lot of Fortune as the primary example.

The Hellenistic Astrologers

Full biographies of each of the major astrologers and sources from the Hellenistic tradition can be found on our Hellenistic astrologers page.

Other miscellaneous articles on the various Hellenistic astrologers can be found below:

• Timeline of Ancient Astrologers – A concise timeline of all of the major Hellenistic astrologers, including some important dates in the history of astrology.