International Sidereal Astrology Association

Advancing Sidereal Astrology with Integrity, Research, and Professional Excellence.

ISAA Mission

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.

ISAA Membership

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.

ISAA Members Receive:

  • Access to Educational ResourcesISAA Online Library & Archive, offering a wealth of research materials and historical texts.
  • Professional Recognition—Enhance your professional resume with certifications, directory listings, and the ISAA seal.
  • Networking OpportunitiesConnect with peers and experts through ISAA forums and events, fostering collaboration and growth.
  • Exclusive Content—Stay updated with the latest insights and developments in sidereal astrology through member-only publications.
International Sidereal Astrology Association (ISAA) Founding Member Seal

Founding Member

Lifetime membership for pioneers in sidereal astrology. Founding Members receive exclusive privileges and priority, and are eligible for ISAA Leadership Roles.

ISAA PM - International Sidereal Astrology Professional Member

Professional Member

For professional astrologer looking to grow their practice through exposure and networking. Professional Members are eligible for ISAA certifications and special dicounts.

ISAA SM - International Sidereal Astrology Association Student Member Seal

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.

Learn More About ISAA Membership Tiers

Courses & Certification

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.

  • 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.

Certification

International Sidereal Astrology Association (ISAA) Certified Astrologer

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.

International Sidereal Astrology Association (ISAA) Certified Instructor

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.

International Sidereal Astrology Association (ISAA) Certified Scholar Seal

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.