Earth revolving around the Sun

Distances and dimensions are not in scale. Color lines show Equinoxes and Solstice.
January

Sunbeam inclination at selected latitude at high noon

Earth view

Selected latitude
The circle of illuminated hemisphere Separator
Equator
Tropics
Polar circles

Seasons

What is the cause of Seasons?

Selecting a place on Earth

Using mouse you can move in  space and rotate the scene. (3D).

The speed of rotation is slowed due to the speed of revolving around the Sun.