Relativistic Starfield Simulator

Simulation

Click the viewport to focus, then use keyboard controls to fly.

Keyboard Controls

W fwd S back A left D right Q up E down ←→ yaw ↑↓ pitch ZC roll Space Doppler H HUD P screenshot O record

Star Field

Number of stars

Bubble radius (ly units)

Camera

FOV (degrees)

Physics

Speed increment (Δ|v| per sec)

Rotate rate (deg / sec)

World speed scale (ly/s at 1c)

Overlays

Aberration ring

Ring angle reference (°)

Auto-scale bubble with world speed Doppler coloring HUD markers Periscope overlay Telemetry overlay Top-down minimap

Minimap view radius (ly)

OFF

World Map

Warped Map

Telemetry

Live readout from the simulation frame.

Waiting for data…

Physics Reference

Lorentz factor and Doppler at current β.

β = 0.000000 γ = 1.000000 Doppler fwd = 1.0000× Doppler bwd = 1.0000×

About

Stars are distributed uniformly in a spherical bubble and recycled as you travel. Lorentz aberration bunches them toward your heading at high β. Doppler shift blueshifts forward stars and redshifts rearward ones. The aberration ring shows where a cone at the chosen angle maps to after aberration.

Tip: set World speed scale to 100 and tap W several times to reach ~0.9c and watch the starfield compress forward.