midheaven

The midheaven (MC) is a point of definition in the ecliptic coordinate system. It aims to find the part of the ecliptic that corresponds to the highest point in a celestial object's apparent daily traverse of the visible sky, midway between its ascension on the eastern horizon and descension on the western horizon. The midheaven does not represent the point immediately overhead (our local zenith) or even the point of the ecliptic closest to it, but the point at which that meridian intersects with the ecliptic.