Everything is moving in the same plane, so drawing it out on ... the distance between the Sun and the Earth, and the distance to the Moon from the Earth, if we line everything up just right ...

An imaginary line connecting the nodes through Earth’s center rotates around the planet every 18.6 years. When the Moon lies on a node, Earth, the Sun, and the Moon lie in the same plane.

The ecliptic is the path the sun, moon ... eclipses take place along this line. This imaginary line can best be visualized in the days just before full moon, especially when there are bright ...

When those conditions align, the Earth, sun, and moon line up. Then, if you're in the path of totality, the moon appears to mask the sun. The moon orbits Earth every 29.5 days. But the moon is not ...