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.
Becoming a member of the International Sidereal Astrology Association (the ISAA) means joining a growing global network of dedicated sidereal astrologers, researchers, and enthusiasts who are committed to preserving and advancing the ancient, real-sky tradition.
Whether you’re a seasoned professional or just beginning your journey, ISAA membership offers a place where your passion is supported, your expertise is valued, and your voice contributes to the evolution of this unique and powerful system of astrology.
As a member, you’ll gain access to exclusive opportunities for collaboration, visibility, education, and recognition within the true sidereal astrology community.
Lifetime membership for pioneers in sidereal astrology. Founding Members receive exclusive privileges and priority, and are eligible for ISAA Leadership Roles.
For professional astrologer looking to grow their practice through exposure and networking. Professional Members are eligible for ISAA certifications and special dicounts.
For students and researchers studying sidereal astrology. Get special access to to educational materials and experts, and discounts on all programs and publications.
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. Our curriculum is designed to honor the rich traditions of astrology while equipping students with practical skills for contemporary application.
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.
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.
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.
Subscribe to our mailing list and be the first to know about membership updates, exclusive sidereal astrology research, upcoming courses, and special events! Get early access to new educational content, receive member-exclusive discounts and offers, and stay informed on the latest developments in sidereal astrology!