Equator of the sun

(Astron.) the great circle whose plane passes through through the center of the body, and is perpendicular to its axis of revolution.

See also: Equator

References in periodicals archive ?
The equator of the Sun rotates about 10 percent faster than its mid latitudes, while equators of Sun-like stars spin up to two and a half times faster than their mid latitudes.
Unlike the more or less orderly system of the eight planets of our solar system - planets following mostly circular orbits that are almost in the same plane as the equator of the sun - it turns out some systems are comparatively very chaotic.