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Planetary Rings (2D)

A top-down Canvas2D companion: thousands of Keplerian ring particles shear apart by radius, a shepherd moon clears a Cassini-Division-style gap at its orbit, and live stats show the orbital periods driving it.

Space & Astronomy2DModerate60 FPS📱 Mobile-adapted⇄ 3D version

This 2D top-down companion runs the same pure-Kepler orbit math as the 3D ring scene: each particle's angular speed follows ω ∝ a^−3/2, so a bird's-eye view makes the differential shear between inner and outer particles, and the shepherd moon's resonance-style gap, easy to read directly — backed by live inner/outer period and shear-ratio stats instead of a rotating 3D camera.

⚙ Under the hood

Top-down Canvas2D companion: thousands of Keplerian ring particles shear apart by radius while a shepherd moon clears a Cassini-Division-style gap at its orbit.

planetary ringskepler's third laworbital resonancecassini divisionshepherd moon2d

2D · HTML5 Canvas 2D · 60 FPS target · runs fully client-side, no install