An interactive multi-screen simulation for studying variable stars through CCD photometry, built with SceneryStack, Vite 8, TypeScript 6, and Biome 2. A SceneryStack port of the NAAP Variable Star Photometry Lab.
- Four-screen workflow: Registration → Blink Comparator → Photometry → Analyzer
- Synthetic CCD star-field images rendered pixel-by-pixel from real stellar catalogue data
- Aperture photometry with draggable apertures and configurable sky annulus
- Blink comparator with epoch queue, blink speed control, and crosshair overlay
- Differential magnitude light curve plotted vs. Julian epoch or orbital phase
- Phase Dispersion Minimization (PDM) for period finding with interactive zoom
- Default and projector color profiles
- English, French, and Spanish localization
- Progressive Web App (installable, offline-capable)
npm install
npm run icons # generate PNG icons from public/icons/icon.svg
npm start # dev server → http://localhost:5173| Command | Description |
|---|---|
npm start / npm run dev |
Start Vite dev server |
npm run build |
Type-check + production build → dist/ |
npm run preview |
Preview the production build locally |
npm run check |
TypeScript type check |
npm run lint |
Biome lint check |
npm run format |
Auto-format all files |
npm run fix |
Lint + auto-fix |
npm test |
Run Vitest unit tests |
npm run icons |
Regenerate PNG icons from public/icons/icon.svg |
npm run clean |
Remove dist/ |
| Tool | Version | Purpose |
|---|---|---|
| SceneryStack | ^3.0.0 | Simulation framework |
| Vite | ^8 | Build tool + dev server |
| TypeScript | ^6 | Type-safe JavaScript |
| Biome | ^2.5 | Linting + formatting |
| vite-plugin-pwa | ^1 | PWA + service worker |
GNU Affero General Public License v3.0 — see OpenPhysics org license.
See OpenPhysics contributing guidelines. Report bugs via GitHub Issues; use org issue templates.