Milky Way
DefinitionThe Milky Way is the galaxy containing our solar system. From Earth, it appears as a pale, luminous band crossing the night...
Midpoint
DefinitionA midpoint is the zodiacal degree located halfway between two planets, angles, or other chart points. Because every pair has two opposing...
Midheaven
DefinitionThe Midheaven, often abbreviated MC from the Latin Medium Coeli, is one of the four principal angles of an astrological chart. It...
Micron
DefinitionA micron is an older name for a micrometre, a scientific unit equal to one-millionth of a metre. The symbol μm is...
Metonic Return
DefinitionA Metonic Return marks the completion of the Metonic cycle, a period of approximately 19 solar years, or 235 synodic months. After...
Metonic Cycle
DefinitionThe Metonic Cycle is a period of approximately 19 tropical years, during which 235 synodic lunar months occur. After this interval, the...
