Fix critical bug: arcvMinimum polynomial constant was 7.1651 (wrong)
instead of 11.8371 (Odeh 2006) in getMoonVisibilityEstimate. Now
imports the canonical arcvMinimum() from visibility module.
Deduplicate shared code across modules:
- arcvMinimum polynomial: single source in visibility/index.ts
- dot/norm vector helpers: use vdot/vnorm from math/index.ts
- DEG constant: use DEG2RAD from math/index.ts
- jdToJSDate: use jdToDate from time/index.ts
Add input validation to all public API functions (lat/lon range,
valid Date instances). Add ESLint + Prettier with TypeScript support.
Convert tests to node:test runner. Fix package.json exports to use
nested types-first format. Pin devDependencies to caret ranges.
Add noImplicitReturns and noFallthroughCasesInSwitch to tsconfig.
Replace .markdownlint.json with .vscode/settings.json. Update CI
workflow with lint job. Expand .gitignore coverage.
Adds five new kernel-free functions using Meeus Ch. 47/48 approximations,
replacing suncalc as the moon data source in the acamarata stack.
- getMoonPosition(date, lat, lon, elevation?) — topocentric az/alt/distance +
parallactic angle via WGS84 geodetic model and Bennett refraction
- getMoonIllumination(date) — illumination fraction, phase cycle position,
bright limb angle, isWaxing via Meeus Ch. 47/48
- getMoonPhase: adds phaseName ("Waxing Crescent") and phaseSymbol ("🌒")
fields to MoonPhaseResult
- getMoonVisibilityEstimate(date, lat, lon, elevation?) — kernel-free Odeh
V-parameter crescent visibility estimate; returns zone A-D, V, ARCL, ARCV, W
- getMoon(date, lat, lon, elevation?) — convenience wrapper combining all four
kernel-free functions into a single MoonSnapshot result
New types: MoonPosition, MoonIlluminationResult, MoonVisibilityEstimate, MoonSnapshot
98 tests (78 ESM + 20 CJS), typecheck clean, zero build warnings
npm rejected moon-calc as too similar to mooncalc. Renamed to
moon-sighting across all source files, docs, wiki, CLI help text,
cache directory paths, and GitHub URLs.
