Every page in sask is driven by a pulse: an integer count of seconds since the Astro epoch (Astro day 1, midnight). Enter a pulse, an Astro day, or a date in one of the two civil calendars (Fatunik or Terpin), and the other forms fill in automatically.
The result table shows the Astro day, time of day, and orbital position for that pulse:
| Field | Meaning |
|---|---|
| Astro Day | Day number since the Astro epoch |
| Day Pulse Offset | Seconds elapsed since local midnight |
| Orbital Position | Percent of the way through the current AstroYear |
The Sky page composes a full sky scene for a given date: which moons
and planets are above the horizon, the current season, visible fixed
stars, and any near-term celestial events. Querying it for the story's
current pulse (104548096103, the default pre-filled value) produces a
night summary like this:
A night of stillness: deep winter, the sky long and cold. Moons above the
horizon: Endor (Pale gray-blue, first quarter) W mid; Sella (Ashy bronze,
waxing gibbous) S high; Lelako (Bright ivory, first quarter) W mid; Jembor
(Rust-brown, full) SE high; Calumbra (Silvery-gray, waxing gibbous) S high;
Zehembra (Gold-hued white, full) SE mid; Shunna (Ice-blue shimmer, first
quarter) W mid; Kanka (Deep violet-brown, full) SE mid. Wanderers visible:
Dramond (Warm amber, hazy rim) S high. The active House of the Equinox is
The Winged Pollinator. 7 fixed stars are visible, including Ilyrun, Kresh,
Marnok and 4 others. This day, 3 moons are near-full together: Jembor,
Zehembra, Kanka. Next night of co-fullness: 1 day away.
Every sentence in that summary comes from a real field on the page: the season, the per-moon phase/color/direction table, the active House, the fixed-star count, and the co-fullness tracker are all visible above this summary when you load the page yourself.
See the Ephemeris page to generate a time-series of sky scenes over a date range instead of a single moment.
The Pulse, Moons, Planets, Sky, and Ephemeris pages can also send you the data as JSON, not just as a web page. Use this if you want the data in your own program.
To get JSON, add format=json to the URL. For example:
http://127.0.0.1:5000/moons?pulse=104548096103&format=json
You can also ask for the data in Spanish. Add locale=es-ES:
http://127.0.0.1:5000/sky?pulse=104548096103&format=json&locale=es-ES
The field names in the JSON always stay in English, even in Spanish. Only the text values (like a season name) change language. This keeps the data easy to read in code, no matter which language you ask for.
For the complete reference of the JSON reply format — every parameter, every field, and worked examples — see /api/reference (as a web page) or /api/reference?format=json (as JSON). The reference itself is available in English only.