Welcome to the ISAA
The International Sidereal Astrology Association (the ISAA) is a nonprofit organization dedicated to preserving, promoting, and advancing sidereal astrology as a rigorous, research-based discipline rooted in the observable sky. We support a diverse community of professional astrologers, students, and researchers who align their work with the actual constellations and fixed stars, rather than relying on tropical placements. Through education, certification, collaboration, and outreach, our goal is to foster excellence within the field and to connect a global network of sidereal astrologers who uphold the highest standards of accuracy, integrity, and astronomical relevance in their astrological practice.
Recent Forum Activity
- Recommended Books, Courses, and Resources
by Abbey QuinnYeah, I suspect that Mercury in Ophiuchus is pulling some deep info out of the cosmos 😉 - Sidereal vs. Tropical
by Rialda AgincicThat’s why I jumped on your course ! Saved me some research time 😅🙏 - Recommended Books, Courses, and Resources
by Rialda AgincicNeptune! Real magician 🪄🤩🧙. I have Mercury and the accedant there.
ISAA Membership
Student Member
For students and researchers studying sidereal astrology. Get special access to to educational materials and experts, and discounts on all programs and publications.
Professional Member
For professional astrologer looking to grow their practice through exposure and networking. Professional Members are eligible for ISAA certifications and special dicounts.
Founding Member
Lifetime membership for pioneers in sidereal astrology. Founding Members receive exclusive privileges and priority, and are eligible for ISAA Leadership Roles.
Learn More About ISAA Membership Tiers
Courses & Certification Under Development
At the International Sidereal Astrology Association (ISAA), we are committed to providing accessible, high-quality education that empowers individuals to practice sidereal astrology with confidence and integrity. We are currently designing a curriculum to honor the rich traditions of astrology while equipping students with practical skills for contemporary application.
- Foundational Knowledge: Begin with core principles that establish a solid understanding of sidereal astrology.
- Specialized Tracks: Advance into focused studies within Mesopotamian, Western, or Vedic traditions.
- Flexible Learning: Choose between comprehensive course packages or individual classes to suit your learning pace and goals.
Certifications Under Development
Certified Astrologer
Build a strong foundation in sidereal astrology by mastering essential techniques, real-sky astronomical principles, and ethical best practices—giving you the clarity and confidence to deliver accurate, meaningful readings.
Certified Instructor
For experienced astrologers ready to teach, mentor, or specialize in a sidereal tradition, this tier recognizes both mastery and the ability to lead and inspire within the field. It’s where deep knowledge meets meaningful impact.
Certified Scholar
For those who have made significant contributions to the field through research, publication, innovation, or preservation of ancient wisdom. Scholars are thought leaders, recognized for advancing the discipline of sidereal astrology.