This page is a work in progress and will be continuously updated!
In the video below, you’ll see a simple 3D visualization in how light bending up can make things appear to sink beneath the horizon. The same upward refraction that causes an apparent sinking beneath the horizon, causes the small celestial sphere in the middle of the concave earth sky appear to envelop you as if you are inside of a celestial sphere as the heliocentric model suggests.
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