About Astra Chron
Earth, in celestial time.
Astra Chron combines astronomical calculations with interactive globe, terrain, imagery, and skyline data so you can explore the sky from another place and time.
Application environment
- Release
- v0.9.25
- Application
- Next.js-compatible React web app
- Primary renderer
- CesiumJS WebGL globe with a Canvas fallback
- Astronomy
- Astronomy Engine calculations
Mapping and data acknowledgements
Globe rendering, terrain, imagery, geocoding, and 3D Tiles services.
Google Photorealistic 3D Tiles and related imagery are shown when Photo 3D is enabled.- OpenStreetMap contributors provide data used by schematic skyline features.
- Astronomy Engine supplies astronomical calculation foundations.
- BigDataCloud supplies reverse-geocoded device-location names.
- Individual imagery and tile-source credits may also be shown by the globe on larger displays when those sources are active.
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