
Write for details: rhysastrology@gmail.com

Rhys Redmond Chatham Astrology
Traditional astrology: horary, natal, elections. Primary directions, yearly profection, solar revolutions and distributions, transits.

Write for details: rhysastrology@gmail.com
Workshop at the Astrological Association conference 2025 – 27-31 August in Nottingham, UK.
Astrological House Division and the Symbolism of the Celestial Circles.
Further info : https://www.astrologicalassociation.c…
Rhys Chatham explains how the major house division systems are calculated in a way that does not require any math. Rather than advocate the use of one house system over another, we will simply compare them and look at the various celestial circles they are based on, reflecting upon the symbolic implications of each of them and how they might impact on chart interpretation. We’ll discuss what distinguishes one house system from another, allowing workshop attendees to make informed choices on which ones to use, for what, and when. In this workshop we will cover the ecliptic-based (whole sign, equal and Porphyry), space-based (Meridian, Regiomontanus, Campanus), and time-based houses (Alcabitius, Koch, and Placidus).
Astrological House Division & the Symbolism of the Celestial Circles Study how the major house division systems are calculated—in a way that does not require any math. Rather than advocate the use of one house system over another, we will simply compare them and look at the various celestial circles they are based on, reflecting upon the symbolic implications of each of them and how they might impact on chart interpretation.
Prerequisites: Fundamental knowledge planets, signs, houses and aspects.
Instructor: Rhys Chatham
To register, click here.
10 AM Pacific / 1 PM Eastern / 6 PM GMT / 7PM Central European
5 April 2025 – Zoom Room (codes TBA)
Have you ever wondered why astrologers can’t agree on a single house system? Why don’t all astrologers use the same house system? What distinguishes one system from another? And why were new house systems developed throughout history?
From ancient times to the modern era, astrologers selected
house division methods based on divergent celestial circles,
believing that each method aligned more closely with the
techniques they practiced. The symbolism inherent in these
celestial circles profoundly influenced their delineations, often
yielding more accurate and meaningful results.
In this talk, attendees will explore the reasoning behind the
major house systems in use today and uncover the deeper
symbolism of the celestial circles that shape house division in
astrology.
I’m doing a workshop on astrological house division at Kepler College this spring, and in April I’ll give a talk that focuses on the symbolism of house division. It will act as a teaser for the workshop.
It’s free and open to the public.


I’m giving a 3-part series of Zoom workshops on house division at the Astrological Lodge of London.
Each workshop is one hour in length, the first is next Monday 25 September at 8:30pm, London time. The subsequent two parts of the workshop are on the following Mondays at the same time, 2 Oct & 9 Oct.
In these workshops, we’ll look at the astronomy behind house division calculation. While there is no math involved, we will look at the celestial circles used in calculating the house cusps and learn to identify them, and then discuss their symbolic implications with respect to chart interpretation.
These workshops do not take a position on a “best” house system. We simply look at the major ones used in ancient, medieval and modern times and consider how they are calculated, we’ll look at their respective differences, and how those differences might affect astrological symbolism.
There is a good deal of information to assimilate and discuss, so rather than try to do it in one go, we’ve split the workshop into three parts:
On 25 September, we’ll do Part 1, where we will look in detail at how the ecliptic based house systems are calculated (WSH, equal and Porphyry), and the symbolic implications of using the ecliptic as the primary celestial circle used in calculating a house system.
Part 2 (held on 2 Oct.) will cover space-based house systems such as Meridian, Regiomontanus and Campanus, and Part 3 (9 Oct.) will cover the time-based systems such as Alcabitius semi-arc, Placidus and Koch.
I’ll post details of how to register for the workshops shortly.
The fees per lecture are as follows:
Lodge Members £8, Concessions £6 – Non-Members £12, Concessions £8.
Why are there so many astrological house systems and why should they create so much controversy?
In this conversation with Ana Isabel of LifeAstrologer, Rhys Chatham discusses how the various house systems evolved and the different ways in which they have been used.
The replay link is below for this month’s AFAN Community Workshop with Rhys Chatham on ‘Astrological House Division and the Symbolism of the Celestial Circles.’ Rhys explained how the major house division systems are calculated in a way that does not require any math.
Rather than advocate the use of one house system over another, Rhys compared them and looked at the various celestial circles they are based on. He guided us through the symbolic implications of each of house system and how they might impact your chart interpretation.
In the workshop Rhys taught what distinguishes one house system from another, allowing you to make informed choices on which ones to use, for what, and when.
The house systems covered in the workshop included the ecliptic-based (whole sign, equal and Porphyry), space-based (Meridian, Regiomontanus, Campanus), and time-based houses (Alcabitius, Koch and Placidus).

I have a piece on Astrological House Division in the current issue of The Evolving Astrologer (formerly known as the Career Astrologer). This magazine is published by the Organization for Professional Astrology (OPA). It is directed at all those interested in Astrology, newcomers and professionals alike.
Click here to download a PDF version of the magazine. My article appears on page 48-55.