Projecting Between the Planes
A fence with palings a degree apart, a planet hovering above it, and what happens to the reading when you tilt the fence and leave the planet alone.
A fence with palings a degree apart, a planet hovering above it, and what happens to the reading when you tilt the fence and leave the planet alone.
The 23.4° tilt between the two reference planes, which is the tilt of the Earth's axis, and what follows from it: the Sun's changing declination, the seasons, the tropics and the polar circles.