What is another word for equinoctial line?
Pronunciation: [ˈɛkwɪnˌɒkʃə͡l lˈa͡ɪn] (IPA) 
The equinoctial line, also known as the equator, is an imaginary line circling Earth equidistant from the North and South poles. It divides the Earth into the Northern and Southern Hemispheres. To avoid using this term repeatedly, one can use synonyms such as the celestial equator, equatorial line, equinoctial circle, or simply the equator. The equinoctial line is vital in understanding the Earth's rotation, climate, and seasons. At the equator, the Sun shines directly overhead twice a year, during the March and September equinoxes, resulting in almost equal day and night durations. The equator is also home to one of the world's most diverse ecosystems, the Amazon rainforest, and the rich cultural heritage of many countries.
