Home▸Quantum Computing▸Dark Matter Rotation Curve Simulator (2D)

Dark Matter Rotation Curve Simulator (2D)

Interactive 2D galaxy rotation-curve simulator: dial in a dark-matter halo mass fraction and watch orbital speeds shift from the Keplerian falloff predicted by visible matter alone toward the flat curve astronomers actually observe.

Quantum Computing2DModerate60 FPS📱 Mobile-adapted⇄ 3D version

Details

CategoryQuantum Computing

RenderingCanvas 2D

DifficultyModerate

Target FPS60

ControlsDrag the radius slider to pick an orbit, adjust the halo mass fraction slider (or click Snap to 100%) to blend orbital speed from the Keplerian visible-matter prediction toward the observed flat curve, and use the orbit speed scale slider to slow or speed up the animation.

dark mattergalaxy rotation curvegalactic dynamicsVera RubinastrophysicsKeplerian declineflat rotation curve

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This 2D top-down simulator models the same galactic-dynamics evidence for dark matter as the 3D version: a spiral galaxy's disk with marker stars orbiting at several radii, driven by a real astrophysical mass model (an exponentially-saturating visible mass profile against a Keplerian speed law, and the actual flat rotation-speed law measured for spiral galaxies like the Milky Way). Instead of a simple on/off halo toggle, a halo mass fraction slider blends in invisible mass continuously from 0% (pure visible-matter Keplerian falloff) to 100% (the full observed flat curve), while a live graph and readouts show the predicted, current and observed orbital speed and the exact dark matter mass required within the selected radius.

⚙ Under the hood

2D top-down galaxy rotation-curve simulator using a real galactic-dynamics mass model: a halo mass fraction slider continuously blends orbital speed from the Keplerian falloff predicted by visible matter alone to the flat curve actually observed in spiral galaxies, with live readouts of predicted, current and observed speed and the exact dark matter mass required within the selected radius.

dark mattergalaxy rotation curvegalactic dynamicsVera RubinastrophysicsKeplerian declineflat rotation curve

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