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v1.1.0 — Now the entire solar system, in a browser tab

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@hyqzz hyqzz released this 13 Jun 14:52
· 84 commits to main since this release
v1.1.0
b88793a

🚀 Solar Wanderer v1.1.0 — Now the entire solar system, in a browser tab

What's new in v1.1.0: the simulation now spans the whole solar system out to ~2 light-years — 28 real trans-Neptunian objects (Eris, Sedna, Makemake, Haumea, Quaoar…) on true JPL orbits, the Oort Cloud as a statistical particle shell, real 3D stellar parallax for 21 bright stars, and light-year distance units.

A 1:1 real-time solar system explorer that runs entirely in your browser. The planets are computed from NASA JPL ephemerides against your system clock — so when you open it, everything is where it actually is right now.

▶ Try it instantly: https://sw.icodestar.net — zero install, zero account, ~180 kB gzipped.

What you can do

  • 🌍 Scroll from Earth orbit down to walking on the Moon — no loading screen, no cut. Look up: Earth hangs full and blue in the black lunar sky.
  • 🚶 Land and walk on 19 solid worlds with real surface gravity. Jump 6× higher on the Moon. Dive underwater on Earth.
  • 🌅 Ray-marched atmospheres — blue limb from space, red sunsets, butterscotch Martian sky. Fly into Jupiter's cloud deck.
  • 🪐 Saturn's rings with ice-particle scatter and a shadow cast onto the planet body.
  • ☄️ The full solar system — asteroid belt, Kuiper belt, 28 real trans-Neptunian objects (Eris, Sedna, Makemake…), the Oort Cloud, out to ~2 light-years.
  • 🚀 6DOF free flight 1 m/s → 2 AU/s, time-warp ×10 years/s, freeze anywhere.
  • 🔭 21 real bright stars at true 3D positions — you see real parallax as you move through the solar system.

Why it's different
Scale True 1:1 km — floating-origin + log depth renders 0.5 m to 100,000 AU seamlessly
Accuracy JPL Horizons verified — ≤0.074° for planets, 21 moons fitted from state vectors. Run npm run verify yourself.
Immersion Continuous orbit → atmosphere → surface → walking → underwater, no cuts
Footprint Pure Three.js + Vite, no backend, no account, MIT

Under the hood

Floating-origin scene graph (Float64 positions, downcast to Float32 only after camera subtraction), logarithmic depth buffer, ray-marched Rayleigh+Mie atmospheres, GPU auto-tiering. All ephemeris code is pure functions, Node-testable, cross-checked against the live NASA JPL Horizons API.

Get started

git clone https://github.com/hyqzz/Solar-Wanderer.git
cd Solar-Wanderer && npm install && npm run dev

Or just open https://sw.icodestar.net.

Contributions welcome — translations, real DEM terrain, eclipse shadows, sound, mobile touch. See CONTRIBUTING.md and the good first issue label.

⭐ Star it if it made you feel small in a good way.

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