Welcome to OPA

Empowering Astrological Excellence

Where Superb Education Meets Community Connection

Be Empowered

OPA brings essential information, insights, and experiences to students and practicing astrologers.

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Meet the Board

What OPA Offers

Events

Join us for online webinars, monthly speaker series, and in-person engagements.

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Training

Take the steps to OPA certification, or just go deeper into your own personal journey of astrology.

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Publications

Browse our collection of astrology articles, our free magazine, and OPA’s The Professional Astrologer book.

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Store

Dozens of webinar recordings available for purchase.

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Upcoming Events

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OPA Retreat Details
Coming Soon

What’s Current

OPA Speaker Series

Diverse Lineup of Expert Astrologers

Each speaker brings unique insights, covering subjects from the astrology of love and relationships, the superpower of Virgo, wealth indicators in horoscopes, to the consciousness growth enabled by outer planets, the influence of fixed stars, the predictability of earthquakes, and the secrets of AstroCartoGraphy.

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OPA Workshops

Learn with the Experts

Immerse yourself in engaging, interactive 3-hour astrology workshops led by top astrologers renowned for their expertise. Each session offers a unique opportunity to explore a specific topic in-depth, gaining insights and practical skills to enhance your astrological journey.

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OPA Live

2027: Eclipses, New Paradigms & the Astrology Ahead

Join astrologers Rachel Lang, John Marchesella, and Diane Trimbath for a compelling exploration of the astrology shaping 2027, a year of bold beginnings, spiritual realignment, and significant change. Together, they will examine the planetary patterns defining the year ahead, with special attention to the powerful eclipse cycles and their impact on both individual lives and world events.

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Mentorship Program

Personalized Support from Experienced Astrologers

Launch or expand your practice.

Intimate groups of 6 to 8

6 monthly meetings

Led by expert astrologers

Register now for advanced pricing

Full Details

2027 Registration Available

OPA Peer Group Program

Part of the OPA Certification process

Learn how to handle difficult client situations

Elevate your analysis and consultation skills

Enhance authentic branding, business planning and marketing

Peer Group Details

Consulting Skills in Spanish Available

Consulting Skills

Part of the OPA Certification process

Communicate with impact and sensitivity

Navigate strong emotions and complex topics with grace

Build trust and rapport through every stage of the client journey

Consulting Skills Details

Linea Van Horn & Geoff Gronlund

Astronomy for Astrologers

Part of the OPA Certification process
This online course provides essential knowledge of fundamental astronomy to help students better understand the mechanics, motion, and terminology of our solar system. The course includes weekly classes, activities, and quizzes to help integrate the knowledge and develop a clearer sense of how it all works.

Registration now open for 2026

Full Details

OPA’s Astrology Magazine

The Evolving Astrologer

September Equinox 2026

We are delighted to share with you the September Equinox edition of The Evolving Astrologer. This issue’s main theme is Self-Care for the Astrologer with amazing articles by many astrologers of different practices and traditions as we at TEA make every effort to honor all flavors of astrology.

Additionally you can explore our regular columns on Marketing, AstroMapping, Tarot, AI and more!

We hope you enjoy this issue of our beautiful magazine.

With gratitude from
Kay Taylor, OPA President &
Catherine Boyer, OPA Director of Publications

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