opa - the organization for professional astrology
The Organization for
Professional Astrology
opa - the organization for professional astrology
The Organization for
Professional Astrology
opa - the organization for professional astrology
The Organization for
Professional Astrology
astronomy for astrologers 2023 program

Linea Van Horn & Geoff Gronlund

OPA Astronomy for
Astrologers – 2023

Begins September 10, 2023

Students will familiarize themselves with the terminology and concepts of astronomy and bring their knowledge “down to earth” through a series of activities, quizzes, and a final exam.

This class is designed to prepare the student to pass the astronomy questions on any astrological certification exam, no matter which organization sponsors it.

Real time attendance is always recommended but not required for this program. Astronomy for Astrologers will be recorded and shared with participants.

9-week Course Held on Sundays
11am – 12:30pm Pacific
2pm – 3:30pm Eastern
18:00 – 19:30 UTC**

**except Nov 5 (19:00 – 20:30 UTC) due to U.S. time change.

Topics Covered

  • Great Circles and 3 Coordinate Systems
  • The Solar Cycle
  • The Moon: Phases, Nodes, and Eclipses
  • Planets
  • Declination
  • Synodic Cycles
  • The two Zodiacs, Fixed Stars, and Precession
  • House Systems

$350 for non-OPA members
$300 for OPA members

Linea Van Horn

Linea Van Horn

C.A., NCGR-PAA
. . . is the Astrologer at Large. Professional since 1998, Linea is Founder and President Emerita of the San Francisco Astrological Society (1992 – 2014). Formerly employed in the astrology Internet industry, Linea is an experienced astrological advisor, respected teacher, published author, and dynamic public speaker. She currently devotes herself to client work, teaching, writing, and community building in the San Francisco Bay Area. She is certified through the National Council for Geocosmic Research Professional Astrologer Alliance (NCGR-PAA) and the Organization for Professional Astrology (OPA). She serves on the Board of Examiners for NCGR. Member of AFAN, ISAR and OPA. Visit Linea’s website: www.AstrologerAtLarge.com

Geoff Gronlund

Geoff Gronlund

. . . is a certified and practicing evolutionary astrologer who has studied with Maurice Fernandez, Gemini Brett, Alexandra Karacostas, and Kay Taylor, among others. Working with some of the greatest astrologers in the world, Geoff served on the board of the Organization for Professional Astrology (OPA) from 2017 to 2022 as Outreach and Internal Programs Director, helping to navigate the ever-expanding international astrology community. Geoff currently writes weekly astrology forecasts for New England-based company Mexicali Blues, and his writing is available on his website at www.GeoffGronlund.com