Geodetic Astrology for Relocating and World Affairs

Chris McRae


Geodetic astrology literally means ‘World’ astrology. The Geodetic Equivalent concept was originally a house cusp structure calculated for any geographic location, and a natal chart inserted within it can be used for personal relocation in order to emphasise or alleviate specific points on that chart. The chart of an eclipse, lunation, or Great Conjunction can also be inserted within its cusp structure for mundane astrology, observing angular emphasis in forecasting. The concept has been advanced to place the zodiac across a map of the world for a quick glance at where a planet’s position or even an eclipse degree would have its greatest infl uence, pinpointing global “hot” spots for a notable event. It could indicate the escalation of political activity and societal tension, predict the potential of an earthquake or a volcanic eruption, or indicate extreme weather conditions due to shifts in ocean currents.

This book is a fascinating compilation of the author’s countless years of study in the application of both mundane astrology and personal relocation. It can be understood by any level of astrological student due to the many examples, stories and explanatory text and will no doubt provide inspiration for further research.

Weight 300 g

Sadly Chris McRae is no longer with us but she is very much missed. She packed vast astrological experience into over 45 years as a consultant, teacher, author, and international lecturer for major conferences in many different countries around the world. She developed a multi-level, semester-structured course that teaches natal astrology, as well as mundane astrology in many of its facets: horary, electional, and relocation. Geodetic Astrology for Relocating and World Affairs is her third book.

Awards include FCA Uranus Award for Innovation, AFA book award in 2002, ISAR Life Time Achievement Award in 2014, and UAC Regulus Award in 2012. Chris served on the ISAR Board of Directors as Vice-President, Chair of the International Council, and Chair of Certification.

An idea that has been around for millennia, and formalized in Ptolemy’s classic Tetrabiblos, is that the astrologer can project the twelve signs of the zodiac onto the Earth. Then, when an important astrological cycle – such as an eclipse or outer planet conjunction – comes into play, you have a good idea where on our planet these celestial circumstances will manifest. This far out branch of astrology is known as geodetics, and we have very few books in print that explain it, although the subject has its advocates in blogs and other online sources. Astrologer Chris McRae has been researching how mundane events are related to the projected zodiac for the last 45 years, and presents her research and conclusions about its validity in Geodetic Astrology for Relocating and World Affairs. One of the key issues in this field is where to anchor the zodiac, that is, what point on Earth should mark 0º Aries. The most convenient starting point is Greenwich since its longitude is 00ºW00’. Other astrologers prefer to set the 0º Aries point at the Great Pyramid, or further south of Greenwich (near the Azores) since the latitude at Greenwich is 51ºN29’. By far, the most popular version is set at Greenwich, and this is where McRae anchors the zodiac on her world map. Traveling eastward, every 30º begins a new sign, so that Aries covers most of Western Europe, and Taurus begins its 30º span around Kiev and includes most of the Middle East. The 30º increments continue around the globe, and in the U.S. the signs Scorpio, Sagittarius, and Capricorn correspond to the West Coast, the Heartland, and the East Coast. These geodetic degrees represent permanent angles, which McRae uses as the Midheaven for any horoscope. In this way, you can insert your own birth chart into the global map using the local geodetic Midheaven as your personal Midheaven. This technique is similar to Astro*Carto*Graphy in that it helps inform you about how you will do at any location. However, ACG maps and geodetic maps are not the same and give different results. After introducing the material, the author devotes the rest of the book to explaining major events in terms of their geodetic relevance. Chapter 3 explores how individual charts can be relocated using geodetic maps, and gives a few celebrity examples to show how it’s done. Some illustrations are more convincing than others, or more telling in their obvious significance. Perhaps the best example is Sir Edmund Hillary’s natal horoscope relocated to Nepal. Recall that he was the first man to climb Mt. Everest, and his powerful natal Mars-Pluto conjunction is at the Midheaven in this location. Chapter 4 delves into the tricky business of predicting natural disasters such as earthquakes, tornadoes, and volcanoes. Actually, no predictions are being made here, but a look back at some of the most disruptive disasters provides the clues for making such predictions. The key astrological events in pinpointing these apparently random occurring catastrophes are lunar and solar eclipses. Theoretically, the longer the eclipse lasts, the more potent it becomes, and therefore the more damage it could cause. However, a relatively brief eclipse could trigger an earthquake if the area of total darkness intersects with a precarious fault line. In chapter 4 you can read about the Great San Francisco Earthquake of 1906, and several other massive earthquakes in the 20th century. McRae’s technique is to look at eclipse pairs by making a biwheel with the earlier eclipse on the inner wheel and the later eclipse on the outer wheel. Then this biwheel is set for the location under investigation, with the Midheaven being the geodetic degree. In San Francisco, the geodetic Midheaven is 27º Scorpio, and the author presents a biwheel featuring the previous solar eclipse for August 30, 1905 on the inner wheel, with the partial solar eclipse on February 23, 1906 on the outer wheel. This kind of presentation can be used for any mundane event, and is used for the rest of her illustrations. After you read about earthquakes, political upheavals, and economic collapses using geodetic maps, go back to page 46 and look at figure #14, which shows the eclipse paths on the world map for 2017 to 2022. Something to ponder is what the August 21, 2017 eclipse will bring, since the path of totality runs right across the center of the United States, starting near Seattle, Washington and continuing through Atlanta, Georgia. Chapter 7’s “Summary of Making Geodetic Predictions” gives an itemized list with brief explanations of what works in geodetic astrology. There’s no time like the present to educate yourself on this subject: that August eclipse across the U.S. will be a major challenge to your interpretive skills.
Chris Lorenz  –  Dell Horoscope


Chris McRae’s newest book is the result of more than 45 years’ study of mundane and relocation astrology. For readers unfamiliar with the author, she is a much-lauded teacher and lecturer and the recipient of many awards (including the ISAR Lifetime Achievement Award in 2014). She is an exceptional writer, making this complex subject very easy to grasp. This book, another beautifully designed offering from The Wessex Astrologer, contains 45 illustrations — a huge assist to the subject matter — using world maps as well as horoscope wheels (and bi-wheels).

Geodetic astrology, which literally means “world” astrology, is a system whereby one can determine locations where particular planetary events may be more prominent; it places “the zodiac across a map of the world for a quick glance at where a planet’s position or even an eclipse degree would have its greatest influence.” The Geodetic concept is “a viable frame of reference, not only in predicting disasters but also political upheavals and shifts in societal consciousness.”

Similar in concept to Astro*Carto*Graphy®, the Geodetic map has a distinct difference: Physical locations have permanent angles, that is, “the four angles are permanently preset on a map of the world.” Based on the world map, Geodetic calculations begin with the Midheaven placed at 0° Aries in Greenwich, with each zodiacal degree matching a degree of longitude around the globe. (This is easy to see as a graphic.)

The author begins with an overview of Geodetic charts, including contrasts with Ptolemaic country rulerships. She discusses national and local identities in connection to the Ascendant and Midheaven of the place. The ten pages of tables of Geodetic cusps for major U.S. and world cities alone are worth the price of the book for anyone wanting to track world events. (She explains how
to do this and includes a Guide for Construction of a Geodetic World Map in the closing chapter.)

Subsequent sections describe in detail various applications of the Geodetic chart. I was fascinated right away by her first example: relocational Geodetic charts and maps for John F. Kennedy and Lee Harvey Oswald, wherein each natal chart is transferred to the Geodetic cusps of Dallas, Texas. McRae’s analysis includes transits, previous New Moons and eclipses, and Arabic parts (standouts are, for JFK, the Parts of Bereavement, Death, and Assassination; for Oswald, the Part of Treachery). In this chapter, she also looks at the natal and Geodetic charts of Sir Edmund Hillary, General George Patton, and Steve Jobs.

The next sections discuss Geophysical Disruptions; the author analyzes more than a dozen earthquakes and volcanoes, plus “Major Storms” (e.g., hurricanes, tornadoes). The chapter “Following the Daily News” details ten international events, including the Titanic setting sail, 9/11, the Rwanda genocide, and the Columbine school shootings. She focuses on the astrology (and is precise, including length of time for eclipses and their place in the Saros cycle), and she also adds information about tectonic plates, weather patterns, political and historical details, etc., which make for an absorbing read. There is an excellent Summary of Making Geodetic Predictions and a Bibliography.

The author suggests many techniques for further research, but is also modest about what can be accomplished by studying. Perhaps “it simply comes down to applying astrological patterns to specific events to determine if an accident or incident is in a high probability range.” The charts are definitely interesting, and “if the result managed to save a few lives it would be well worthwhile.”

The obvious audience for this book would be those who are interested in mundane astrology and mapping techniques. I’d add that any readers who appreciate innovative techniques — in this case, from a superb astrological thinker — will love Chris McRae’s book.
— reviewed by Mary Plumb TMA April 2017


The Geodetic Equivalent concept of applying the signs of the zodiac across the surface of the Earth first came to my attention as a result of an innate sense of curiosity. As I studied astrology alone, isolated from other astrologers, I had only books to refer to and so I read, digested and experimented, having no-one to share ideas with, get feedback from, or to determine if I was on the right track. My membership of the American Federation of Astrologers and their catalogue of books became my lifeline to the outside world of astrology. I pored over the book list like a madman plotting some great scheme, which indeed I was. I ordered, I read voraciously, I experimented, and the result was that I developed an in-depth crosssection of astrological information and opinion.

This hunt and peck system of searching for viable astrological information sometimes led down blind alleys but at other times it unearthed little gems such as a wee publication entitled The Geodetic Equivalent, written under the pen name of Sepharial whose real name was Dr. Walter Gorn Old. It measured only four-and-a-half by six-and-an-eighth inches thick, was written presumably in the 1920s and reprinted by the American Federation of Astrologers in 1972. I didn’t know what it was about, but the price was so minimal that I ordered it. It took no longer to read than the time it took to drink a cup of coffee, but it opened up a whole new world of exciting research. Its initial appeal was its simplicity,

but as time went on I could see it had much more depth than I at first realized. I was captivated by the range of possibility.

I first learned that the Geodetic chart is simply a house cusps structure drawn up for any geographic location into which one can insert transits for the time of an event or even insert an eclipse chart to see if an area was earmarked for a special event. A natal chart can also be inserted into the Geodetic cusps for any geographic location to see where planets are angular for a relocation assessment.

It was so easy and fast to do that I found myself casting Geodetic cusps and applying transits for incidents announced during the evening newscast, and soon I had a pile on my desk waiting for me to cast the charts. I wondered if the permanent Geodetic angles could be drawn on a map of the world in order to allocate angular planetary positions. I marked the Midheavens on a map, placing the zodiac eastward from Greenwich in thirty-degree increments matching thirty degrees of longitude, starting with Aries. The first thirty degrees of eastern longitude has an Aries Midheaven, the second thirty degrees has a Taurus Midheaven and so on with 29˚ Pisces butting up against 0˚Aries after circling the globe. Drawing the Ascendant lines on a flat map surface was more time consuming. The process is outlined in the last chapter of this book.

By now I had learned enough to start presenting it to others at conferences. The first presentation was in about 1980 at The Seven Hills Conference in Lynchburg, Virginia, and then in 1982 at the American Federation of Astrologers Conference in Chicago, Illinois. In the early 1990s I recall making a presentation at the Arizona Astrological Society in Scottsdale, Arizona, which was attended by prominent astrologer and author Noel Tyl. He told me that one of the reasons he had moved to Fountain Hills in the Phoenix area was because of the way his natal chart fitted into the Geodetic energy of the area. He has been in Phoenix ever since, which would be about twenty-five years.

As the concept was gaining popularity, we had to convince astrological programmers to includeit into their computer programs. They all now include both the Geodetic charts as well as Geodetic maps showing where natal planets are angular.

And so I have come to write this book, based on all those years of intrepid research. The first manuscript was called The Geodetic World Map in 1988 and has long been out of print. It was also somewhat minimal in its content compared to this book.

In the following chapters you will learn that the Geodetic Equivalent has several areas of application as follows:


Personal relocation, with planets plotted on a chart or world map

Rulership of nations according to their Midheaven and Ascendant zodiacal positions

Global news such as political upheavals, geophysical activities such as earthquakes and volcanic eruptions, great storms such as tornadoes and hurricanes/cyclones, and other  cataclysmic activities such as fires and floods etc.

Extreme weather activities


Along with Astro*Carto*Graphy® devised by Jim Lewis in the mid-1970s, this is another way to determine which planets are angular as we travel across the world. The main difference between the two systems is that Astro*Carto*Graphy® requires a separate map for each chart whereas the Geodetic concept has permanent angles on a map onto which planets can be applied.

Geodetic astrology may not solve all of our predictive dilemmas as we search for the perfect framework especially in the context of mundane astrology, but I hope the many examples in this book will encourage further study in this fascinating area.

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