Definition
The aclinic line, also known as the magnetic equator, is an imaginary line around the Earth where the magnetic dip is zero. Imagine it as Earth’s belt, magnetically speaking! 🌍 This means that a compass needle, if perfectly balanced, would rest horizontally along this line. It's not the same as the geographic equator, and it shifts over time due to changes in Earth's magnetic field. The aclinic line plays a role in the distribution of Earth’s radiation belts.