Solar Fire
Esoteric Technologies
What it is
Solar Fire is the desktop software considered the gold standard of professional astrology. Developed in 1992 by Australian Esoteric Technologies; still active in 2026 (version 9.0+). For Windows: natal chart, transits, progressions, solar arc, harmonics, midpoints, fixed stars, all dignity calculations, profections, time lords, electional astrology, horary — practically everything a modern astrologer needs. It's common for an astrology school to say "students must use Solar Fire." Price ~$400; an investment for professional astrologers. Has rivals like Astrology Pad, AstroGold, Kepler 8, but Solar Fire is the most comprehensive. Adopted classical Hellenistic techniques (post-Project Hindsight) early, and modern psychological techniques too.
Why it matters
The "industry standard" of professional astrology — shapes how an astrologer works. The modern Hellenistic revival (1990s-today) spread rapidly because Solar Fire added the techniques early.
Themes
- professional standard
- Windows desktop
- comprehensive tradition
- astrologer's standard