Nadia Anderson is an astrologer and researcher specializing in ancient astrological traditions. She draws on Babylonian astronomy, Hellenistic astrology, and medieval Arabic techniques to explore how individual lives unfold within larger cycles of time. Nadia teaches at Kepler College’s Hellenistic Astrology Certification Program and emphasizes traditional timing methods, including circumambulations through the bounds, to help students and clients gain clarity and insight into life’s patterns. Her approach blends rigorous scholarship with practical application, making classical astrology accessible and meaningful today.

Hellenistic astrology is the astrological tradition that developed in the Mediterranean world between the 2nd century BCE and the 7th century CE. It focuses on using planetary positions, house systems, and timing techniques to understand a person’s life patterns and predict major events. Unlike modern psychological astrology, which emphasizes personal growth and self-reflection, Hellenistic astrology is highly predictive, grounded in classical texts, and emphasizes the practical unfolding of life events through techniques like primary and participating time lords, solar returns, and circumambulations.

Circumambulations through the bounds is an ancient timing technique used to divide a person’s life into chapters, each ruled by a primary and a participating time lord. This method, practiced for over 2,000 years, allows astrologers to identify periods when certain themes, challenges, and opportunities are likely to emerge. By following the movements of planets through the bounds of the zodiac, astrologers can gain precise insight into the timing of life events, helping students and clients understand when major shifts or turning points may occur.

Nadia Anderson’s research draws on a wide range of classical sources, including the works of Hellenistic astrologers such as Dorotheus of Sidon and Ptolemy, as well as medieval Arabic astrologers like Abu M’asher. She also studies Babylonian astronomical texts that underpin much of early astrology. Her approach is informed by both primary source study and lineage-based learning, including long-term mentorships with traditional astrologers like Demetra George, Benjamin Dykes, and Martin Gansten. This combination of historical scholarship and practical application forms the foundation of her teaching and practice.

For studying ancient astrology, it’s best to combine primary sources with modern translations and commentaries. Key classical texts include Dorotheus of Sidon’s Carmen Astrologicum, Ptolemy’s Tetrabiblos, and writings by medieval Arabic astrologers such as Abu M’asher. Modern scholars like Demetra George, Benjamin Dykes, and Martin Gansten provide invaluable commentary, teaching, and translations that make these works accessible. Additionally, courses and lectures from programs like Kepler College’s Hellenistic Astrology Certification offer structured guidance, practical applications, and a supportive community for learners of ancient astrology.

1 - Aglaonice of Thessaly

2 - Vettius Valens

3 - Thrasyllus of Mendes