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Cách khám phá Earth-Moon Barycenter 3D Explorer

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Open the explorer and watch Earth swing around the point it shares with the Moon.

  1. Open https://freetoolonline.com/space-3d/earth-moon-barycenter.html and wait for Earth, the Moon and the yellow dot.
  2. Note the yellow barycenter dot sitting inside the see-through Earth.
  3. Watch Earth centre trace a small circle while the Moon loops the far side.
  4. Follow the lever line joining Earth, the dot, and the Moon.
  5. Use the speed slider and read the panel for the 4,671 km and 81 to 1 figures.
See four Earth-Moon barycenter steps: open the explorer, note the yellow dot inside Earth, watch Earth mid-point circle, and follow the lever line.
Open the explorer, note the yellow dot, watch Earth circle, follow the lever line.

Earth-Moon barycenter key figures

FigureValue
Barycenter distance from Earth center4,671 km (inside Earth)
Earth : Moon mass ratio81 : 1
Mean Moon orbital radius384,400 km

Next: the when guide or vs alternatives. Open the Earth-Moon Barycenter 3D Explorer.