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A real person reads every one of these. If you are not sure who to write to, use the general address and we will pass it along.
A real person reads every one of these. If you are not sure who to write to, use the general address and we will pass it along.
Anything about the site, the books, the maps, or a span you want that is not listed. Most books are generated to the place and dates you name, so an unusual request is usually a matter of asking.
Tell us which of the four families you need and roughly what volume. Access is granted per account rather than self-serve, so we will come back with a key and terms set to what you are building.
An almanac, planner, plate, map, circadian schedule or calendar feed set for your place and published under your own name — or the four data families at volume. Tell us what you publish and we come back with a proof and terms.
The programme has its own application form with the fields we need to review it. Please use that rather than email — it keeps applications out of the mailing list.
Access, correction, deletion, or anything else covered by the privacy policy. The Data Protection Officer answers within 30–45 days.
Cycles Arc is a brand of Kairoi Co. OÜ, an Estonian company. Everything published under this name is astronomy, chronobiology, geodesy and meteorology — computed quantities, not interpretation.