Scientific status

What this platform calculates

The astronomy here is ordinary astronomy. Body positions are read from a published planetary and lunar ephemeris (a numerically integrated solution fitted to decades of observational data and described in the peer-reviewed literature) rather than estimated, approximated, or generated by a language model.^[1]

Everything built on top of those positions is arithmetic and convention: converting civil time to a uniform time scale, computing sidereal time, deriving the Ascendant and Midheaven, and dividing the ecliptic into houses. Each of those steps follows standard astronomical practice, and the conventions used are printed underneath every chart so a result can be reproduced or checked rather than trusted.^[2]

Where calculation ends and interpretation begins

That the Sun was at a particular ecliptic longitude at your birth is a measurement. That this longitude says something about your character, your relationships or your future is an interpretation belonging to a tradition. These are different kinds of statement, and we never let the credibility of the first quietly transfer to the second.

The astronomical layer is testable and reproducible. The interpretive layer is a body of doctrine developed over millennia by particular schools in particular places. We present the second as exactly that: what a tradition holds, attributed and dated, not as an established finding about how the world works.

The scientific status of astrological claims

Astrology is not an established science, and we will not imply otherwise. Where astrological claims have been put to controlled empirical test, the published results have not supported them. The most widely discussed example is a double-blind experiment published in Nature in 1985, in which astrologers' matching of natal charts to personality profiles did not perform better than chance.^[3]

That study is not the whole record, and we do not rest the point on it alone. A later independent double-blind test, using a standard personality inventory alongside computer-generated natal interpretations, reached a comparable conclusion, and critical reviews of the wider literature argue that astrological interpretation is too loosely constrained to be decisively tested in the first place.^[4][5]

There is also a well-documented reason astrological descriptions feel accurate regardless of their truth. In 1949 Bertram Forer gave a class identical generic personality sketches presented as individual assessments, and the class rated them as highly accurate. The effect has been reviewed extensively, and it appears in sceptics and believers alike when they are given generic astrological feedback.^[6][7][8]

Why we build this anyway

Astrology is one of the longest-running symbolic and intellectual traditions in recorded history, and it shaped astronomy, medicine, politics and art for centuries. Studying it carefully is worthwhile whether or not you believe a single interpretive claim in it, and the history is genuinely interesting on its own terms.^[9]

It also deserves to be represented accurately rather than flattened. The Babylonian material, for instance, is the product of a scribal and scholarly culture with its own aims, and treating it as a rough draft of the modern horoscope column misrepresents what those texts were doing. Our approach is to be precise about the astronomy, honest about the evidence, and respectful of the history: all three at once.^[10]

What we will never claim

• No medical claims. Nothing here diagnoses, predicts, explains or treats any physical or mental health condition, and nothing here is a reason to seek or avoid care.
• No financial, legal or professional advice. No chart, forecast or horoscope on this platform is a basis for a financial, legal or career decision.
• No predictions of death, disaster, pregnancy, or the certain outcome of a relationship, in any surface, including examples and placeholder text.
• No determinism. We do not present any position, aspect or transit as fixing what will happen to you.
• No fear-based framing. We do not manufacture dread about a date, a transit, or a placement.
• No claim of endorsement. No author, scholar, institution or publisher we cite has reviewed or approved this platform.

How every page is labelled

Each lesson, glossary term and source record carries the tradition it belongs to, the kind of evidence behind it, and its review status. The label that matters most separates astronomical fact from traditional doctrine, so you can always tell which kind of statement you are reading. Sources are recorded with their identifiers, edition and rights status, and records we could not verify stay private rather than appearing with a confident citation attached.