medieval astrology
3 articles tagged “medieval astrology”
InsightsFeatured
The length of life problem: why ancient astrologers could not agree
Ptolemy, Valens, Firmicus, Paulus, and later Persian and Arabic astrologers preserved competing methods for the Hyleg, Alcocoden, and length of life. This source-based history shows the surviving sources preserve no single standard procedure.
Aug 12, 202628 min read
hylegalcocodenlength of life
InsightsFeatured
From seven to five hundred: the 2,000 year transmission of the Arabic Lots
How seven Hellenistic formulas became five hundred. Trace the Arabic Lots from Valens and the lost Panaretus through Abu Ma'shar, Al-Biruni, and Bonatti to the modern Hellenistic revival.
Apr 4, 202625 min read
arabic lotsarabic partshermetic lots
InsightsFeatured
The 15 behenian stars: medieval astrology's most powerful fixed stars
The behenian stars are a group of 15 fixed stars used in medieval astrological magic, each linked to a gemstone, herb, and talisman. Here's where the system came from, what it looked like in practice, and why modern astrologers still track them.
Mar 22, 202614 min read
fixed starsbehenian starsmedieval astrology