Equator vs Greenwichmeridian - What's the difference?
equator | greenwichmeridian |
An imaginary great circle around the Earth, equidistant from the two poles, and dividing earth's surface into the northern and southern hemisphere.
A similar great circle on any sphere, especially on a celestial body, or on other reasonably symmetrical three-dimensional body.
A short form of the celestial equator.
