出典:Wiktionary
出典:Wikipedia
出典:『Wikipedia』 (2010/12/12 12:29 UTC 版)
According to modern astrologers, the Midheaven () or Medium Coeli is the zenith of a path in the sky traced by the point of intersection between the ecliptic and the Meridian (a line of longitude) of a certain terrestrial location. Although the actual point of intersection moves back towards the horizon (to the south in the northern hemisphere) with the Earth's rotation, the Midheaven is fixed as the highest point in the horizon any planet can reach at that location.