Two Clocks

Moira 6.12.0 repairs how the engine keeps UT1 (Earth rotation) and TT (precession, nutation, ephemeris) apart, adds Python 3.15 wheels, and adds Lilly's 1647 horary perfection routes.

Highlights

• Time scales: sidereal time, the equation of the equinoxes, star heliacal search, the lunar-limb profile, leap-second display and the Hermetic decan Ascendant now use the correct clock. Bundled EOP and leap-second data were re-synced.
• Python 3.15: cp315 wheels for every platform, with a dedicated 3.15 compatibility gate.
• Lilly horary: lilly_reception_at, lilly_moon_trace_at, lilly_void_of_course_at and lilly_perfection_routes_at, plus POST /v1/horary/lilly-reception, /lilly-moon and /perfection-routes.
• Fixed stars: selectable position products; Sirius and the alpha Centauri pair corrected.
• Geodetic and Hellenistic: expanded analysis, timing and sensitivity on the facade and over REST; extended aspect, point and Kalachakra coverage.

Upgrade notes

• A fixed-star position without a named product is now the apparent place and needs a planetary kernel. Pass product="astrometric" for the previous result.
• Native moira._moira_native sidereal-time and visibility functions take new jd_tt / delta_t arguments.
• A direct sidereal geodetic chart needs an explicit ayanamsa_deg; a tropical geodetic request that carries an ayanamsa is refused.

Full details: release notes, compatibility notes, changelog.

pip install moira-astro==6.12.0