Home▸Space & Astronomy▸Planetary Alignment: A Rare Conjunction

Planetary Alignment: A Rare Conjunction

3D orbital-mechanics model of the eight planets orbiting the Sun at their real Kepler-law periods and true orbital inclinations, with a live angular-spread readout showing how a tight multi-planet alignment is.

Space & Astronomy3DModerate60 FPS📱 Mobile-adapted⇄ 2D version

Details

CategorySpace & Astronomy

RenderingThree.js · WebGL

DifficultyModerate

Target FPS60

ControlsSliders for fast-forward time speed and angular-alignment tolerance, seven toggle buttons to choose which planets count toward the alignment, play/pause and reset-to-J2000 buttons, a 'jump to next tight alignment' search button, plus orbit-drag/scroll-zoom camera and click-a-planet-to-follow.

planetary-conjunctionorbital-mechanicssyzygyastronomynew-year

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⚙ Under the hood

3D real-orbital-mechanics model of the eight planets circling the Sun at their true Kepler-law periods and inclinations, with a live angular-spread readout showing how tight a multi-planet alignment currently is.

planetary-conjunctionorbital-mechanicssyzygyastronomynew-year

3D · Three.js / WebGL renderer · 60 FPS target · runs fully client-side, no install