The daily race
This applet shows the daily run of the sun over day (blue sphere) and fullmoon at night (dark sphere).
In addition a morning star (MS) and evening star (ES) are illustrated.
The earth's observer is located in the sphere's center.
The daily orbit depends on the degree of latitude and the season;
both can be varied on the left side.
The yellow area is the so called eclipse, the area of the earth Orbit around the sun.