JavaScript Library for Astronomical Calculations
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Jul 28, 2026 - JavaScript
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vsop87
Here are 19 public repositories matching this topic...
JavaScript library to get Positions for Astronomical Bodies, including VSOP2013, VSOP2010, VSOP87, TOP2013, TOP2010, ELP2000-MPP02, ELP2000-82b, EPHASTER ephemerides and some home-grown ones (mgstat2023). Optimized for speed and size.
javascript astronomy planet ephemeris orbital-mechanics lunar vsop87 keplerian-elements orbital ephemerides vsop2013 elp2000 vsop2010 ephemeris-calculations astronomical-bodies top2010 top2013 elpmpp02
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Jun 7, 2023 - PostScript
VSOP87 algorithm in Rust
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Apr 15, 2024 - Rust
Javascript library for positional astronomy
javascript astronomy astrophysics solar-system astronomical-algorithms vsop87 astronomy-library elp2000 hipparcos solar-eclipse meeus
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Apr 27, 2023 - JavaScript
Chinese astronomical calendar, bazi (四柱八字), and divination for TypeScript. Solar terms (節氣) to sub-second precision, lunar calendar (農曆), flying stars (紫白九星), almanac flags (神煞), Six Ren (大六壬) — zero dependencies.
astronomy bazi vsop87 divination lunar-calendar chinese-calendar almanac solar-terms five-elements four-pillars eclipses chinese-zodiac stem-branch six-ren
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Aug 21, 2026 - TypeScript
A wrapper class providing a clean interface for working with Greg Miller's VSOP87-Multilang in C++.
wrapper cpp astronomy mathematics header-only cpp17 glm solar-system vsop87 positions templated vsop
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May 12, 2024 - C++
Caelis Engine v4.0.0, Deterministic astronomical computation engine for JavaScript. VSOP87B + ELP/MPP02-LLR. No server. No API key. No dependencies. Schema v3.1.
nodejs javascript typescript browser astronomy npm-package saas zero-dependency ephemeris astrology astronomical-algorithms vsop87 meeus celestial-mechanics ephemeris-calculations zero-dependencies eclipses planetary-positions
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Aug 14, 2026 - HTML
Elegant astronomy for TypeScript. Supercharged by Bun.
image typescript astronomy nasa wcs indi firmata vsop87 stacking astrometry fits astrophotography stellarium bun erfa spk plate-solving jpl-horizons ascom-alpaca xisf
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Aug 24, 2026 - TypeScript
Frozen calibration artifact for the DesiUtils browser ephemeris: harnesses, raw JPL Horizons inputs and regenerated outputs behind a time-scale defect and a nutation-convention defect. Reproducible with npm ci && npm run verify.
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Aug 16, 2026 - TypeScript
The engineering reasoning behind Kriya — accuracy disclosure, Moon-residual analysis, and API-versioning contract. Public companion to the proprietary engine.
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Jul 29, 2026
Advanced Weather Application with real-time forecasts, astronomical visualization (Sun/Moon arc charts with live tracking, Solar System with VSOP87 calculations), historical statistics, multi-language support (EN/FA), and responsive design. Built with Vanilla JavaScript and Open-Meteo API.
javascript multilingual weather real-time html5 astronomy css3 vanilla-js weather-forecast solar-system responsive-design historical-data weather-app vsop87 open-meteo
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Oct 31, 2025 - JavaScript
Astronomical cycle and aspect calculator — planetary transits, synodic cycles and harmonic index. Pure HTML/JS, no dependencies.
javascript astronomy vanilla-js data-visualization ephemeris astrology canvas-api vsop87 celestial-mechanics transits ephemeris-calculations astrology-calculator planetary-cycles
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Jul 17, 2026 - JavaScript
Independent C ephemeris engine with JPL/CALCEPH, Moshier, VSOP87, ELP2000, Meeus, eclipse, and astrology/astronomy APIs.
c cmake astronomy eclipse ephemeris astrology bsp jyotish vsop87 jpl elp2000 sidereal meeus native-library panchang vedic-astrology calceph planetary-positions moshier jpl-kernels
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May 25, 2026 - C
Migration of a legacy .NET astronomy engine to Flutter/Dart for mobile apps. Implements VSOP87 planetary calculations (Mercury, Venus, Mars, Jupiter, Saturn) with a custom engine and UI. Demonstrates .NET to Flutter conversion, scientific computing, and cross-platform mobile development.
dart csharp dotnet clean-code scientific-computing software-engineering flutter vsop87 cross-platform-app mobile-app-development backend-engineer astronomy-engine dotnet-migration csharp-to-dart legacy-system-migration garurabda gaurabda-calendar
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Mar 30, 2026 - Dart
3D Solar system realistic simulation
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Jan 25, 2026 - JavaScript
PHP FFI wrapper for the JPL Moshier Ephemeris native library with JME API, runtime binaries, and JPL kernel support.
php laravel astronomy eclipse ffi ephemeris astrology bsp jyotish vsop87 jpl elp2000 meeus php-ffi panchang vedic-astrology calceph planetary-positions moshier jpl-kernels
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Jul 9, 2026 - PHP
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