The Language of Uranian Astrology Review (Jacobson)

If you're curious about Uranian astrology, The Language of Uranian Astrology is less a casual introduction than a technical textbook. Roger A. Jacobson isn't trying to sell you on vague mystical atmosphere. He's trying to teach a system. That makes this book worth your time, but it also makes it demanding.

That's important to know going in. Uranian astrology is already one of the more specialized branches of modern astrology. Often associated with the Hamburg School, it grew out of the work of Alfred Witte and Friedrich Sieggrün in the early twentieth century. The system is known for midpoints, planetary pictures, hard aspects, chart dials, and the use of eight hypothetical transneptunian factors.

This isn't another general astrology book with a few unusual ideas mixed in. Jacobson is writing from inside a very specific tradition. The commonly cited edition was published by Uranian Publications in 1990, at 272 pages.

What Uranian astrology is, in plain English

A reader coming from mainstream natal astrology may wonder what makes Uranian astrology different. The short answer: it reads charts through geometric relationships and structured combinations rather than the usual planet-in-sign and planet-in-house interpretations. To understand how, you need a few concepts that Jacobson builds up piece by piece.

The six personal points

Mainstream astrology mostly works with planets in signs and houses. The Uranian system starts from a different foundation: six personal points. These are the Meridian (M), the Ascendant (A), the Sun, the Moon, the Moon's Node, and the Aries Point.

Jacobson describes these as "intake valves or channels of communication" through which extraterrestrial energies reach the native. Three of them (M, Moon, and Sun) represent internal experience. The other three (A, Node, and Aries Point) represent external states and spatial relationships. The entire Uranian house system is built on these six points. Each personal point generates its own set of equal houses, giving the astrologer six different house systems to work with in a single chart.

Planetary pictures

The idea that really sets Uranian astrology apart is the planetary picture. A planetary picture is a symmetrical arrangement of astrological factors grouped around a common axis. When the midpoint of one pair of planets falls on the midpoint of another pair, you have a planetary picture, written as an equation: Venus + Zeus = Sun + Apollo, for example.

Jacobson uses a tugboat metaphor to explain how this works. Imagine a freighter being pulled by two tugboats with equal force. The ship's actual direction of movement follows the midpoint between the two tugboats. A planetary picture works the same way. Four planets pulling together symmetrically merge their combined force along a single midpoint axis.

The meaning comes from blending the keywords of the planets in the equation, regardless of whether those planets form a traditional aspect to each other. Two planets with no conventional aspect between them can still participate in the same planetary picture. That's a very different way of reading a chart.

Jacobson demonstrates this with the chart of Judy Garland. The midpoint of Venus and Zeus falls on the axis of the Sun and Apollon midpoint (Venus/Zeus = Sun/Apollon). The interpretation comes from combining the keywords of all four factors, not from any individual aspect between them.

The 90-degree dial

To actually find planetary pictures, Uranian astrologers use a specialized tool: the 90-degree dial. It works like a standard 360-degree chart wheel that has been folded over on itself twice. This does two things. It spreads the degree divisions out to four times their normal width, giving much better visual accuracy. And it instantly reveals hard aspects. When two factors appear at the same position on the 90-degree dial, it means they're in conjunction, opposition, or square on a regular chart. If they appear at opposite ends of a diameter, they're in a semisquare or sesquiquadrate.

This makes planetary pictures much easier to spot. Instead of hunting around the whole wheel or doing the math by hand, you can see them directly on the dial.

The eight transneptunian factors

The most controversial part of the Uranian system is its use of eight hypothetical planets. Witte and Sieggrün derived them astrologically rather than discovering them by telescope. They verified their existence and effects across thousands of horoscopes. Each one carries a specific set of keywords:

These function the same way regular planets do in the system. They participate in midpoints, planetary pictures, and aspects just like Mercury or Saturn would.

Why tight orbs matter

One more thing worth understanding: orbs. Uranian astrology uses much tighter orbs than most other traditions. Jacobson recommends a maximum of five degrees on the 360-degree dial and just three degrees on the 90-degree dial. He's direct about why: if you widen the orbs, the system breaks down. Too many planetary pictures start appearing, and you can't distinguish signal from noise.

Widening orbs further causes the situation to get out of hand from a realistic point of view. For the wider the orb is, the more pictures will result.

How Jacobson teaches it

Jacobson frames the entire Uranian system as a language:

Learning astrology is like learning a foreign language. The basic vocabulary of Uranian astrology consists of the six personal points and sixteen planets... Words from the Uranian vocabulary are combined together 'grammatically' in ways that correspond to the arrangement found among planets in the inscription that is the horoscope chart. The grammar of the language of astrology is geometrical.

The planets are the vocabulary: twenty-two factors in total, including the six personal points, the standard planets, and the eight transneptunians. The grammar is geometry.

That framing isn't just a throwaway analogy. It shapes the whole book. Jacobson teaches the vocabulary first (what each factor means), then the grammar (how aspects, midpoints, and planetary pictures combine them), and then delineation (how to read the resulting sentences). It's a pedagogical approach that works, and it makes the system learnable even when the subject matter is dense.

A lot of astrology books stay broad and interpretive. Jacobson goes the other way. He's much more interested in method and organization. If you're tired of floating descriptions and want to understand how a technical school actually works, this is the kind of book that delivers.

Solar arc directions

The book also covers predictive astrology, and the method it teaches is solar arc directions. The core idea is clean: one day of the Sun's motion after birth equals one year of life. Because the Sun moves roughly one degree per day, you advance every factor in the birth chart forward by one degree for each year of the native's life. The whole chart moves as a unit.

Jacobson demonstrates this with Judy Garland again. When she began taping her first television show on June 24, 1963, she was 41 years and 14 days old, giving a solar arc of 39 degrees 09 minutes. Adding this arc to her natal planets, directed Kronos lined up with radix Uranus, and directed Apollon lined up with her radix Ascendant. Jacobson's interpretation:

At this time of my life I am suddenly well known again more than ever as a female artist. My career proceeds by leaps and bounds and my artistic efforts are rewarded with huge success.

Whether or not you find the interpretation convincing, the method itself is elegant. It gives you a systematic way to time events using the same midpoint and planetary picture techniques that drive the natal work.

Where the book gets difficult

This isn't an easy beginner read.

Part of that is the subject itself. Uranian astrology has always had a technical reputation. The midpoint-heavy method demands more mathematical comfort than many other approaches, and Jacobson doesn't soften that.

Then there's the philosophical question. If you're already skeptical of hypothetical bodies, the eight transneptunians will probably be the hardest part of the system to accept. They've always been the most disputed feature of the tradition, and Jacobson doesn't really argue their case so much as assume it.

The difficulty is technical and conceptual at the same time. You have to decide whether you're willing to work inside the assumptions of the school.

Who this book is for

I would recommend The Language of Uranian Astrology to:

• Astrologers who already know the basics and want to go deeper into midpoint work
• Readers who enjoy technical systems
• People curious about the Hamburg School specifically
• Astrologers who want to understand how Uranian astrology differs from more mainstream natal interpretation

I wouldn't recommend it as a first astrology book. If you're brand new to astrology, this will feel too dense and too specialized too early.

Final verdict

The Language of Uranian Astrology is worth reading if you actually want to understand Uranian astrology rather than just sample it. Jacobson takes the system seriously enough to teach its internal logic, and that's rare.

Even if you don't end up embracing the full Uranian framework, I think working through it sharpens how you think about chart structure. Midpoints, symmetry, and concentrated planetary relationships make you a more attentive chart reader. That carries over regardless of the tradition you end up practicing.

It's not the most accessible entry point. But if you're the kind of reader who wants to know why Uranian astrology developed the reputation it has, this book will show you.

References

• Jacobson, Roger A. The Language of Uranian Astrology. Uranian Publications, 1990. 272 pp. Google Books
• Hamburg School of Astrology on Wikipedia
• Alfred Witte on Wikipedia
• Uranian Astrology on Astrodienst Astrowiki
• Midpoint on Astrodienst Astrowiki