For organisations

Our numbers. Your imprint.

Everything Cycles Arc publishes under its own name can be published under yours. The engines compute for the place and span you name, the press sets the pages in your colours and with your mark, and you put it in front of your readers, customers, staff or visitors. We stay in the method note.

What can carry your name Write to us

Six objects

What can carry your name.

Each of these is a finished object the press already makes. Under your imprint it is set to your place and dates, your typography and palette, and delivered as print-ready files or as a live feed.

A season page from an almanac — **Almanacs and calendars**A year, a season, a month or a single night of the real sky for one place — eclipses, moons, meteor peaks, the turns of the year, planets rising and setting — as the pages of a year-end edition, a members’ calendar or a visitor guide.

A weekly agenda page — **Planners, agendas and journals**Dated or undated books with the astronomical spine already set: every full moon, every eclipse, every solstice on its page, hyperlinked and fillable. A 456-page planner exists today; a stationery brand can ship it as its own line.

A Year of Moons plate — **Plates and infographics**One subject on one page — the analemma over your city, a year of moons, the 18.6-year standstill, the brightest stars, the planets to scale — drawn as exact vector geometry over our own sky renders. Posters, inserts, teaching sheets.

A regional map plate in the Verdigris house style: pale green coast and border lines on deep green — **Maps**Plates of the world, a region, a coast, a city at real population — or the Moon and Mars — drawn to your centre, span, layers and house style at print resolution. Borders as they stood in the year you choose.

Circadian reportsA jet-lag plan for a route, a shift rotation for a ward or a crew, a seasonal light schedule for a latitude, a caffeine and nap window for a working day. Every window traced to named research, timed to the second.

A year of moon phases arranged on a ring — **Calendar feeds**A live subscription your users add once and keep: the sky events, moon phases or light windows for their place, arriving in their own calendar under your name. Updated by us, branded by you.

The swap

The same page, under another masthead.

Nothing about the computation changes when the name on the sheet does. The eclipse table below is a real page out of our own press; put your masthead on it and it is your page, set to your place, your dates, your type and your palette. The method note at the foot is the only thing that stays ours.

Ask for a proof →

An eclipse table under a placeholder masthead — Illustrative masthead over a real table page.

The other direction

Your data, our press.

You do not need our numbers to use our press. Bring the tables, schedules, survey or calendar you already publish and we typeset them to the same standard as everything in our catalogue — plates, books, cards, calendar feeds — print-ready, in your mark, on your schedule. Where our computed data would improve a page, we will say so and show it beside yours; where it would not, we leave your numbers alone.

Who tends to ask

Eight kinds of desk.

Different objects, one press. If your work involves telling people something true about the sky, their clock, the ground or the weather, this is the shape of it.

Publishers and newspapersalmanac pages, year-end and seasonal editions
Stationery and planner brandsa dated line with a real sky inside
Planetariums, museums, dark-sky parksvisitor guides and teaching plates
Tourism boards and event organisersthe eclipse, the shower, the season, for one place
Sleep clinics, airlines, hospitals, minescircadian schedules for people who work against the clock
Architects, solar installers, growerssun paths, daylight curves, insolation through the year
Schools and universitiesthe sky as it will be over the campus, not a stock diagram
Software and media productsthe four families at volume, through the API

How it runs

Three steps, and you see the object before you commit.

Tell us what you publish

The object, the place or places, the span, the audience, and roughly how many. A paragraph is enough to start.

We set a proof

A real page for your place and dates, in your mark and colours, with the method note drafted. You see the actual thing before anything is agreed.

You publish

Print-ready PDF, a feed, or files on a schedule — a yearly edition, a monthly insert, a nightly card. Corrections and reprints run through the same press.

Non-negotiable

What stays true under any name.

Your imprint changes the face of the page, not the substance. These do not move, and they are the reason the page is worth putting your name on.

Sources named — the ephemeris, the model, the survey, on the page
Computed, not simulated — the sky from DE441, evaluated for the site
Any place, any date — the same method in 1500 and in 2500
No astrology — not in the pages, not in the vocabulary
Nothing retained — your readers’ places and dates are not kept
Every figure traceable — any number on the sheet can be recomputed on request

Data and API at volume

Or take the numbers instead of the pages.

Everything on this site is a thin layer over the same set of answers, and you can have those answers directly. Four families, one request each, no interpretation attached and nothing you have to un-guess afterwards. Live now: Sky and Body, each described in full on its own page. Earth and weather are forthcoming.

Exact dates — computed, not interpolated from a calendar table
Any place — a coordinate, or a city name we resolve for you
Any date — deep past and deep future, the same method at both edges
Named sources — every model and reference is attributable
Plain JSON — small, flat, boring on purpose
No interpretation — you get the number, not our opinion of it
Nothing retained — we do not keep what you send us
Stable shapes — fields are added, not renamed under you

And the documents

The finished object is an answer too.

The books, plates and calendars are not a separate business: they are the same answers, typeset. If you want the finished document rather than the raw numbers, ask for that instead — generated on demand for the place and span you name, delivered back to you, under our name or under yours.

Documentsa finished, print-ready almanac, agenda or plate for a given place and span
Platesa map drawn to your centre, span, layers and style, at print resolution
Feedsa live calendar subscription: the events for a place, arriving in the user’s own calendar

Asked often

What technical teams check first.

Is this a wrapper around someone else’s API?No. The sky answers are computed here from the published ephemeris; the weather is built from national model data we ingest ourselves; the Earth layers are our own index over published survey data. There is no upstream vendor to go down.
Can I ask two families in one question?That is the point of them living together. “Is the meteor peak visible from here, given the cloud” touches Sky, Earth and Weather at once, and it is a single question rather than three you have to reconcile yourself.
How far back and forward does it go?For the sky, thousands of years in each direction — the same computation, not a degraded approximation at the edges. Weather is a forecast, so it goes as far as a forecast honestly can and no further.
Do you store what I send?No. Requests are answered and discarded. There is no profile being built on the other side of the call.
How is access granted?Per account rather than self-serve, because we would rather know what you are building than hand out keys and hope. Tell us which families you need and roughly what volume, and we come back with a key and terms.

Tell us what you are building Or use the form below →