tempoch-js

Why it exists

tempoch-js brings Siderust’s typed astronomical time model to JavaScript. The workspace ships aligned Node and browser packages that preserve the same strongly-typed Julian date, UTC, and period concepts used by the Rust backend.

Key Features

• Node package: @siderust/tempoch
• Browser/WASM package: @siderust/tempoch-web
• JulianDate, ModifiedJulianDate, and Period APIs
• Interop with qtty-js quantity objects
• TypeScript declarations for both targets

Getting Started

npm install @siderust/tempoch @siderust/qtty

const { JulianDate } = require('@siderust/tempoch');
const { Hours } = require('@siderust/qtty/units');

const jd = JulianDate.j2000();
const later = jd.add(Hours(6));
console.log(later.toDate().toISOString());

Contributing

We welcome contributions! Here's how you can help:

• 1 Fork the repository and create your branch from main
• 2 Make your changes and add tests if applicable
• 3 Ensure all tests pass with cargo test
• 4 Submit a pull request with a clear description

License

This project is licensed under the AGPL-3.0 license. See the LICENSE file for details.