What is Inclination of the Moon’s orbital plane?

The Moon doesn’t move in a perfect circle around Earth, it has inclination in its path, like a wobbly swing.

Imagine you're playing on a swing. If the swing moves straight back and forth, that’s easy. But what if the swing also moved up and down while you went forward and backward? That’s kind of like how the Moon orbits Earth, it moves around us in a tilted path, not flat like a plate.

Think of the Moon's orbit as a hula hoop around Earth. If the hula hoop was perfectly level, that would be no inclination. But it’s actually tilted at about 5 degrees, like if you leaned your hula hoop slightly to one side before spinning it around. That tilt is the inclination of the Moon’s orbital plane.

Because of this tilt, sometimes the Moon appears higher in the sky than other times, just like how a swing might go higher when you lean forward. This tilt also helps explain why we get eclipses, the Moon has to be at the right angle for Earth's shadow to touch it! The Moon doesn’t move in a perfect circle around Earth, it has inclination in its path, like a wobbly swing.

Imagine you're playing on a swing. If the swing moves straight back and forth, that’s easy. But what if the swing also moved up and down while you went forward and backward? That’s kind of like how the Moon orbits Earth, it moves around us in a tilted path, not flat like a plate.