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.
Upcoming Workshops
The International Sidereal Astrology Association (ISAA) is hosting a new series of free live Zoom workshops featuring expert teachers across Western, Vedic, and Mesopotamian sidereal traditions. Each session offers practical techniques, real-sky astrology, and actionable insights for both students and professionals. All workshops are free to attend live, and replays are available to ISAA members. Join us to learn, ask questions, and connect with the global sidereal astrology community.
Sidereal Rising Journal
December Solstice Edition, 2025
- Cyril Fagan—An insightful analysis of Cyril Fagan’s legacy, situating his work within the broader history of sidereal astrology and reexamining his contributions under a Vedic and astronomical lens.
- Path of the Moon—An in-depth exploration of the Path of the Moon, uncovering the earliest foundations of the zodiac and the enduring legacy of Mesopotamian astrological traditions.
- Pluto in Capricorn—A reflective examination of Pluto’s passage through Capricorn, focusing on collapse, reform, and the reconfiguration of authority and institutions.
- The Stars Remember Her Name—An intimate account of how rediscovering the real sky initiated a process of deep healing and self-realignment, transforming one woman’s relationship to astrology and to herself.
- Uranus in Taurus—A rigorous analysis of Uranus in Taurus, investigating cycles of revolution and regeneration through resources and financial stability over the last few centuries in the United States.
Sidereal Rising appears quarterly at the equinoxes and solstices, inviting readers to join a growing community of scholars, practitioners, and sky-watchers exploring the constellations as we rise together. We welcome your contribution! Check out our Submission Guidelines.
Latest Blog Post
New Moon in Ophiuchus/Sagittarius: Release and Renewal
The seeds of December’s New Moon cycle will be planted in one of the most condensed areas of the sky this month. Between Ophiuchus and Sagittarius, the Sun, Moon, Venus, and Mars meet at the Galactic Center; a vibrantly massive and powerful area of the sky. This is a concentrated environment that functions as a gradual purifying influence, symbolically associated with cycles of release and renewal. Mercury isn’t traveling far behind the armada, conjunct Antares, and squaring the lunar nodes in (N. Node) Aquarius and (S. Node) Leo. Read More ➡
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.