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N‑body Simulation by Adam Block

(with lots of help from ChatGPT‑5)

Units: AU Years M☉ · Integrator: Leapfrog (Velocity Verlet). G = 4π².

Stars200

O(N²) gravity — realtime usually ≤ ~400.

Mass min [M☉]

Mass max [M☉]

Uniform in [min,max]. Set equal ⇒ identical masses.

Initial radius r₀ [AU]100

Initial velocities

Softening ε [AU]

Kernel

Δt [yr]

Steps / frame

Metrics every N frames

Seed

Auto‑rotate camera

Show COM axes/grid

Grid scale

Ride camera mode

Color mode

Saturation [%]300%

Star size min [px]

Star size max [px]

Trails length (frames/∞)

Off

Trail frames (type)

Trail resolution

Adaptive trails (auto)

Clamp when FPS drops

Target FPS

Trail width

Trail near‑cull [px]

18 px

Metrics