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Summary
DescriptionExpansion of the universe, proper distances (Animation).gif
English: Expansion of the universe, proper distances diagram (Animation).
Horizontal axis: Proper distance in billion light years. Vertical axes: time since Big Bang in billions of years
Shown are the Particle Horizon rP (green), Event Horizon rE (magenta), Hubble Radius rH (blue). Past and future light cones rL (orange) are animated. Dashed grey lines are lines of constant comoving distances (i.e. the Hubble flow).
For the same animation using comoving coordinates click here. For still images of different models in different coordinates see below:
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