About

The working table for the esoteric arts

Trismea is an instrument for traditional astrology and ceremonial practice: it finds the moment, draws the figure, and keeps the record of what was done under it.

What it is

Most astrology software answers what is the sky doing? Trismea answers the question a practitioner actually has, which is when will the sky be like this? — you describe the chart you need, and it sweeps months of time down to the minute and returns the windows that have it, each one cast and checkable.

Around that sit the things an election is for:

  • Charts — natal and event charts, kept: essential and accidental dignity, the lords of every degree, the angles, sect, the lunar nodes and the Behenian fifteen, with a plain-English glossary for anybody meeting the vocabulary for the first time.
  • Electional search — thirteen kinds of condition, swept over a date range in three passes, from templates that each cite a source.
  • Rites — the procedure written before and followed during, laid out one step to a plate for reading at an altar.
  • The magical record — an encrypted diary of workings, each with the sky frozen exactly as you acted under it.
  • The workshop — sigils traced over the seven planetary kameas, and talismans followed through their whole life from draft to release.
  • The correspondence corpus — what the tradition says corresponds to what, and which book said it.

Where the numbers come from

Positions are computed with Skyfield reading JPL DE440, the ephemeris NASA uses for spacecraft navigation. It covers 1549 to 2650, and a moment outside that range is refused rather than extrapolated — a wrong answer delivered confidently is worse than no answer.

Places come from GeoNames — about 170,000 populated places, held locally, each carrying its IANA time zone. Nothing is sent to a geocoder, so typing where you live does not tell a third party where you live. Times are stored in UTC and rendered in real zones, never in fixed offsets, which are wrong twice a year.

Where the tradition comes from

Every correspondence in the corpus names the book it came from, and where two books disagree, both readings are kept and neither is marked correct. Agrippa gives the Sun the angel Raphael; the Heptameron gives it Michael. Choosing between them is the practitioner's work, and it cannot be done if the software has already chosen.

Citations are the product, so their limits are published with them. Every shipped attribution is chapter-level and has not yet been checked against a printed edition, so it is marked unverified in the interface. Nothing is ever written from memory: a fabricated citation is worse than a missing one, because a gap is visible and a fabrication is not.

What it does not do

These are commitments, not a list of features that have not been built yet:

  • No generated prose about a chart. The application ranks the configurations a chart contains and shows its arithmetic for the ranking — but every word a reader sees about what a configuration means is a quotation from a named edition at a page number. Nothing here composes an interpretation.
  • No synthesis across sources. Two testimonies are never combined into a third. That combination is where a generated reading would begin, and it is the reader's to make.
  • No sun-sign horoscopes. Not now and not later.
  • Nothing composes, suggests or ranks a rite. A fabricated rite reads exactly like a real one, and somebody would perform it.
  • The analytics do not claim evidence. The record can show you what you logged and how you rated it. That is a description of one person's practice — self-selected, self-rated and tiny — and the page says so above every number rather than in a footnote.
  • Silence is never used to make coverage look better. A search that widened its step, a list that was capped, a reading whose configurations no shipped book treats — each says so on the page.

Your work is yours

The intent, body and outcome notes of every entry in the record, and the names and notes on your charts and rites, are encrypted in the database with keys the application holds — they are not readable by anyone with database access alone, and the cost of that is real: they cannot be searched in SQL, and that limitation is accepted rather than worked around.

Everything is exportable as Markdown or JSON at any time, from /record/export and /charts/export, and those doors stay open even when a subscription lapses. A tool you cannot leave is a tool you should not have joined.

Who makes it

Trismea is built and run by Trismea LTD. It is a small, independent operation rather than a venture-funded one, which is why it is sold by subscription and not by advertising, and why there is no analytics or tracking script on any page.

Write to support@trismea.com — about the software, about a citation you think is wrong, or about anything the pages above claim and fail to do. Corrections to the corpus are especially welcome, and they are the kind of mail that gets answered first.

See also the Privacy Policy and the Terms of Service.