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Equinox (MLM) Equinox International was a multi-level marketing organization, headed by Bill Gouldd. In the early-to-mid-1990s, Equinox was one of the fastest-growing companies in the United States. It had its headquarters in Las Vegas, Nevada.
Its declination will not be exactly zero either. (The ecliptic is defined by the center of mass of the Earth and Moon combined). The modern definition of equinox is the instants when the Sun's apparent geocentric longitude is 0Â° (northward equinox) or 180Â° (southward equinox). See the adjacent diagram. Because of the precession of the Earth's axis, the position of the vernal point on the celestial sphere changes over time, and the equatorial and the ecliptic coordinate systems change accordingly.