List of longest-running U.S. primetime television series. This is a list of the longest running U.S. primetime television series, ordered by the number of broadcast seasons offered by a U.S. broadcast network or cable network in prime time on the show's original run. Broadcast syndication that could have been scheduled by local stations in prime time have been omitted.
The celestial equator is inclined by 23.4Â° to the ecliptic plane. The image shows the relations between Earth's axial tilt (or obliquity), rotation axis and plane of orbit. The celestial equator is a great circle on the imaginary celestial sphere, in the same plane as the Earth 's equator.In other words, it is a projection of the terrestrial equator out into space. As a result of the Earth's axial tilt, the celestial equator is inclined by 23.4Â° with respect to the ecliptic plane.At the poles, though, the celestial equator would be parallel to the horizon.) At all latitudes the celestial equator appears perfectly straight because the observer is only finitely far from the plane of the celestial equator but infinitely far from the celestial equator itself.
The equator is the point from where the latitude is calculated. In other words, it is the 0Â° latitude line. It is the imaginary circle that draws a line between the Northern hemisphere and Southern hemisphere.