Above: Exploring the obtuse heptagram in the crop circle phenomenon. By Karen Alexander  
Continues: Sunday 30th March 2025 
6.00pm – 8.00pm UK time.
£25.00 per session
Bookings Open! 

In session 1 of this course we looked at the birth of the number seven and sevenfold geometry in the crop circle phenomenon. We discussed the sevens involved in the Charley Knoll crop circle of 1993 and then the hidden sevenfold geometry in the 1996 Oliver’s Castle crop circle. Finally, we looked at the first manifest sevenfold crop circle that appeared at Danbury Ring in 1998 – which we drew during the session. We also began our exploration of the number seven and its geometric forms (heptagon, the two heptagram stars and the seven-petalled flower-of-intelligence). We looked at the unique way in which division-by-seven presents no whole number solution for the geometer and drew the first in a series of exercises for dividing the circle into seven. 

If you missed session 1 you can still purchase the video recording and all the accompanying materials from the Magnificent Sevens webpage. 

In session 2 we will be taking our first foray into the obtuse heptagram (one of the two heptagram stars), both in its appearances in the design of some crop circles, but also in its role in proportioning some crop circle designs. We will look particularly at two recent crop circles, the first at Devil’s Den in 2018 and the second at Ludgershall in 2021. The first contains both an obtuse heptagram and the flower-of-intelligence, the second contains a set of nested obtuse heptagrams. We will also look at the curious case of the Crabwood quintuplet of 2022, which contained a hidden proportioning obuse heptagram and connected sky and ground, through a series of geometrical synchronicities. We will also discover and draw John Michell’s method of dividing a circle into seven using a square and a triangle. It promises to be a jam packed session, full of fascinating facts and stories. 

SESSION TWO OUTLINE

Welcome!

About this course/ongoing sessions:
 

Part One: Presentation

1. The obtuse heptagram properties and qualities
2. The obtuse heptagram in crop circle design
3. The obtuse heptagram in the proportioning of the crop circles
4. The curious case of the Crabwood quintuplet of 2022: Ground, Sky and Synchronicity. 

Part Two: Drawing

1. John Michell's Division by Seven 

Part Three: Drawing

1. The Devil's Den crop circle of 2018
2. The Ludgershall crop circle of 2021

Below: The Crabwood quintuplet of 2022 proportioned by an obtuse heptagram. 
By Karen Alexander