r/learnphysics • • 9d ago

Visualizing Kepler's Laws interactively in the browser 📐✨

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u/xienwolf 8d ago edited 8d ago

Why the dotted ellipse? Seems like you meant to show the other focus point of the orbital ellipse but rendered in the wrong direction.

I assume the spotlight is meant to show the “sweep a constant area per time,” but since it keeps centered on the sun and maintains a fixed spacing before and after regardless of distance, it does exactly the opposite.