Hypothetical Planets and the Hamburg School of Astrology
In the early twentieth century, a surveyor in Hamburg looked at the standard set of planets and decided something was missing. Not metaphorically missing, but literally absent: bodies that ought to exist beyond Neptune, exerting effects that the known planets could not account for. He gave them names borrowed from Greek myth, worked out tables for their positions by hand, and built an entire school of astrology around them. None of these planets has ever been found. The system is still in use today.
This is the story of the Hamburg School, one of the strangest and most rigorous branches of modern astrology, and the eight invisible worlds at its heart.
A Surveyor Goes Looking for What Is Not There
Alfred Witte (1878 to 1941) was a surveyor and amateur astronomer in Hamburg with a serious interest in astrology. During the First World War he tried to use astrological forecasting for practical military purposes, and came away convinced that the traditional planets alone could not explain everything he was seeing in the charts. His conclusion was bold to the point of recklessness: there must be further bodies out beyond Neptune, undiscovered, quietly shaping events.
He presented his first findings to the Hamburg astrology community in 1913 and spent the following two decades refining the system. The timing was not accidental. Astronomers of the era were themselves hunting for a planet beyond Neptune, the search that would eventually turn up Pluto in 1930. Witte was proposing his own candidates in exactly the same intellectual climate, which is why his bodies were classed as "transneptunians," points lying beyond Neptune's orbit.
The formal organisation, the Astrologenverein Hamburger Schule, was established on 31 October 1925. Witte worked alongside two key collaborators, Friedrich Sieggrün and Ludwig Rudolph. Witte himself proposed the first four hypothetical planets. In 1927 Sieggrün added another four. Rudolph took on the job of printing and publishing the work, and in 1928 the core of it appeared as the Regelwerk für Planetenbilder, the Rules for Planetary Pictures.
The Eight Invisible Worlds
The eight transneptunian points, sometimes called TNPs or Witte Points, each carry an archetypal meaning meant to fill a gap Witte felt the traditional planets left open. Witte named the first four; Sieggrün named the second four. They move very slowly, with orbital periods estimated from roughly 262 years for the innermost up to several centuries for the outermost, which gives them a generational quality. The broad meanings, drawn from Uranian sources, run as follows:
- Cupido: family, marriage, groups, societies, art and the household. The principle of things joining together.
- Hades: the hidden, the buried, the antique and the decayed. Research into the past, difficult and detailed work, and what lies beneath the surface.
- Zeus: controlled, directed energy. Machinery, combustion, creative drive and purposeful force, with a long military association.
- Kronos: authority, mastery, the highest standard, officialdom and expertise. The undisputed authority in any field.
- Apollon: expansion and multiplication. Many interests at once, commerce, science and broad-ranging growth, often described as a kind of amplified Jupiter.
- Admetos: the immovable. Endurance, compression, standstill, raw material and the seed state before anything grows.
- Vulkanus: enormous power and force. Intensity, might and the application of overwhelming strength.
- Poseidon: inspiration, spirit and idealism. Enlightenment, the immaterial and the higher mind.
The mythological logic is sometimes quite deliberate. Vulkanus draws on Hephaestus, the smith-god cast out of Olympus who returned by crafting things the other gods needed, which is why the point carries a sense of force overcoming a handicap.
What Made the System Genuinely Different
It would be easy to dismiss the Hamburg School as eccentric, but the method behind it was unusually disciplined, and several of its features have outlived the controversy over the planets themselves.
The first innovation was a wholesale shift towards midpoints. Rather than reading planets in isolation, Witte revived and developed the practice of finding the exact halfway point between two bodies, the (a+b)/2 calculation, and treating that point as a sensitive degree in its own right. When a third planet falls on the midpoint of two others, the three form what Uranian astrologers call a "planetary picture," a small equation of meaning. This emphasis on precise geometric relationships gave the system a mathematical flavour that set it apart from the looser interpretive style elsewhere.
The second was the 90-degree dial, a rotatable disc that compresses the full circle so that conjunctions, oppositions, squares and other hard aspects all line up at the same point. Soft aspects are deliberately ignored. The dial makes clusters of energy jump out visually, revealing patterns that a standard round chart can hide. Notably, the Hamburg School largely discarded the traditional twelve houses and rulerships, throwing out a great deal of conventional machinery in favour of symmetry and degree contacts.
From Hamburg to the World
The system travelled, and it changed as it went. In the 1930s the American Richard Svehla translated the Rules for Planetary Pictures into English and coined the term "Uranian Astrology" for the American branch. Hans Niggemann later carried the teaching forward in the United States. A separate offshoot came through Reinhold Ebertin, who took Witte's midpoint work and built his own system, cosmobiology, around it, while pointedly throwing out the hypothetical planets and keeping only the midpoints and the dial. Ebertin's stripped-down version, closer to mainstream technique, ended up more widely known than the original.
The human story behind all this turned dark. Witte and Rudolph were pursued by the Gestapo as enemies of the Third Reich. Worried about losing his state pension, Witte took his own life in 1941, and Rudolph was interned, surviving to revive the work after the war. It is a sobering footnote to a system often treated as a curiosity.
The Question That Will Not Go Away
The obvious objection has always been the obvious objection. These planets do not exist, or at least none has ever been found. Modern astronomy has now confirmed thousands of genuine trans-Neptunian objects out in the Kuiper Belt, but none of them corresponds to Witte's Cupido or Sieggrün's Poseidon, and the points used in Uranian astrology have been neither confirmed nor formally disproven as physical bodies. Some practitioners have quietly retreated from the word "planet" altogether, suggesting the points might represent the balance-points of clusters of smaller objects, or treating them frankly as theoretical markers rather than worlds.
Witte himself wanted astrology treated as a science, testing claims against present reality rather than inherited authority, and the irony is that this scientific ambition is exactly what drew the ridicule that shadowed his later years. For the believing astrologer, the lack of a physical body need not be fatal. A point that has been observed to work in chart after chart for a century has its own kind of evidence, even if a telescope will never settle the matter. That is a philosophical position rather than an astronomical one, and worth recognising as such.
Whatever one makes of the eight invisible planets, the Hamburg School is a useful reminder that astrology is not a single fixed tradition but a field of competing methods, some loose and intuitive, others as exacting as Witte's dials and equations. Exploring those differences is part of what makes the subject rewarding, and it is the spirit in which the team at Wilfred Hazelwood Astrology approaches the wider history of the craft.
A surveyor measured the sky, found a gap, and filled it with worlds nobody could see. The planets remain hypothetical a hundred years on. But the technique they were built to support, the precise reading of symmetry and midpoint, quietly seeped into the wider practice of astrology and never left. Sometimes an idea outlives the thing it was attached to. The Hamburg School is a clear case of exactly that.
