LOCAL ASSETS · LIVE SIMULATION

Three-Body Observatory.

INITIALIZINGCHECKING WEBGL 2 · LOADING ENGINE

Press H for the scientific HUD · Preparing the observatory

Press Esc to release mouse capture

LOCAL ASSET DECK · SCIENTIFIC HUD

LOCAL / SCIENCE

Flight and system controls

Fly the Cibru character through one live scene. Bodies keep their spherical geometry and textures at every distance; orbit trails and cinematic flight effects start enabled, and the HUD can hide or restore the trails. Reset system + flight restarts the simulation and flight state.

LIVE SYSTEM

SPACE FLIGHT

System state

Close approach: Clear

SIMULATION

TIME SCALE · DEFAULT 10×

Playback starts at 10×. Choose any available rate; Reset system + flight restores this default.

ADAPTIVE QUALITY

Active tier: high. Auto reduces detail only after sustained low FPS and does not change physics.

ORBIT TRAILS

Long deterministic tails are shown from the opening frame and remain independent of playback speed.

SCIENTIFIC TELEMETRY

SAMPLED / WAITING

Three-body measurements

Values are sampled below the render cadence. Physics positions use normalized astronomical units (AU); display positions are the same coordinates mapped to renderer units (ru) for visual scale.

Mass, position, speed and acceleration for each simulated body
Body	Mass	Position · normalized / display	Speed	Acceleration	Context
Star	—	——	—	—a = —	Space frame
Rocky planet	—	——	—	—a = —	Space frame
Icy moon	—	——	—	—a = —	Space frame

Pairwise distances

Star ↔ Rocky planet: —
Star ↔ Icy moon: —
Rocky planet ↔ Icy moon: —

Acceleration is the net vector magnitude in normalized AU/yr². Render radii, trails and vector lengths are editorially bounded and never feed back into the physics snapshot.

Equations

aᵢ = G Σⱼ≠ᵢ mⱼ (rⱼ − rᵢ) / ‖rⱼ − rᵢ‖³

Fᵢⱼ = G mᵢmⱼ / ‖rⱼ − rᵢ‖² · direction(rⱼ − rᵢ)

The fixed-step integrator samples these pairwise interactions in normalized distance, mass and time units. Force and acceleration vectors are presentation overlays; hiding them does not alter the model.

Model notes and assumptions

One normalized distance is one astronomical unit (AU), one mass is one solar mass (M☉), and one time unit is one Julian year.
Body radii, atmosphere thickness, trails and display coordinates are exaggerated or bounded for readability; they are not collision or gravity inputs.
The initial configuration and visual detail seed are deterministic. Chaotic sensitivity can amplify tiny state differences without adding frame-dependent randomness.
Cinematic mode changes the presentation while preserving the same sampled physics snapshot. Flight effects and smoothly fading orbit trails stay enabled in both profiles.
The flight safety boundary keeps the character outside each visible body; the star is never a solid landing surface.

SIMULATION TIME · NORMALIZED: —
TIME SCALE: —
RENDER RATE: —
STATE: INITIALIZING
CAMERA: —
FLIGHT: —
BOOST: —
FLIGHT SPEED: —

Flight speed uses render units per second (ru/s), separate from physics model units.

Performance sample

These values are sampled from the current engine session. They are diagnostic measurements, not a cross-device performance claim.

FRAME: —
PHYSICS: —
TRAIL UPDATE: —
TELEMETRY: —
RENDER: —
DRAW CALLS: —
TRIANGLES: —

OBSERVATORY ENGINE INITIALIZATION

Loading the procedural observatory…

.three-body-observatory-shell:not(.three-body-observatory-no-script) { display: none !important; }

JavaScript is disabled

The browser-only WebGL 2 renderer cannot start. This static explanation describes one deterministic star, one rocky planet, and one icy moon. The interactive experience adds keyboard flight through the same live spherical bodies, fading orbit trails, and sampled scientific telemetry.

Body sizes are exaggerated for readability. Flight safety keeps the character outside each body; the star is not a solid landing surface.

Back to Playground

CIBRU / PLAYGROUND

Opening Three-Body Observatory

A deterministic star, rocky planet, and icy moon observatory with an accessible static explanation when WebGL 2 is unavailable.

Preparing the browser-only observatory shell…

JavaScript is disabled: live flight and scientific controls cannot start. The model uses exaggerated spherical body sizes; the star is not a solid landing surface. Use Back to Playground to leave this static view.

Back to Playground

Flight and system controls

LIVE SYSTEM

SPACE FLIGHT

System state

Close approach: Clear

SIMULATION

TIME SCALE · DEFAULT 10×

Playback starts at 10×. Choose any available rate; Reset system + flight restores this default.

ADAPTIVE QUALITY

Active tier: high. Auto reduces detail only after sustained low FPS and does not change physics.

ORBIT TRAILS

Long deterministic tails are shown from the opening frame and remain independent of playback speed.

SCIENTIFIC TELEMETRY

SAMPLED / WAITING

Three-body measurements

Values are sampled below the render cadence. Physics positions use normalized astronomical units (AU); display positions are the same coordinates mapped to renderer units (ru) for visual scale.

Mass, position, speed and acceleration for each simulated body
Body	Mass	Position · normalized / display	Speed	Acceleration	Context
Star	—	——	—	—a = —	Space frame
Rocky planet	—	——	—	—a = —	Space frame
Icy moon	—	——	—	—a = —	Space frame

Pairwise distances

Star ↔ Rocky planet: —
Star ↔ Icy moon: —
Rocky planet ↔ Icy moon: —

Acceleration is the net vector magnitude in normalized AU/yr². Render radii, trails and vector lengths are editorially bounded and never feed back into the physics snapshot.

Equations

aᵢ = G Σⱼ≠ᵢ mⱼ (rⱼ − rᵢ) / ‖rⱼ − rᵢ‖³

Fᵢⱼ = G mᵢmⱼ / ‖rⱼ − rᵢ‖² · direction(rⱼ − rᵢ)

Model notes and assumptions

One normalized distance is one astronomical unit (AU), one mass is one solar mass (M☉), and one time unit is one Julian year.
Body radii, atmosphere thickness, trails and display coordinates are exaggerated or bounded for readability; they are not collision or gravity inputs.
The initial configuration and visual detail seed are deterministic. Chaotic sensitivity can amplify tiny state differences without adding frame-dependent randomness.
Cinematic mode changes the presentation while preserving the same sampled physics snapshot. Flight effects and smoothly fading orbit trails stay enabled in both profiles.
The flight safety boundary keeps the character outside each visible body; the star is never a solid landing surface.

SIMULATION TIME · NORMALIZED

—

TIME SCALE

—

RENDER RATE

—

STATE

INITIALIZING

CAMERA

—

FLIGHT

—

BOOST

—

FLIGHT SPEED

—

Flight speed uses render units per second (ru/s), separate from physics model units.

Performance sample

These values are sampled from the current engine session. They are diagnostic measurements, not a cross-device performance claim.

FRAME: —
PHYSICS: —
TRAIL UPDATE: —
TELEMETRY: —
RENDER: —
DRAW CALLS: —
TRIANGLES: —

Three-Body Observatory.

Flight and system controls

System state

Three-body measurements

Pairwise distances

The observatory is unavailable.

Three-Body Observatory.

Flight and system controls

System state

Three-body measurements

Pairwise distances

The observatory is unavailable.