Equinox
DefinitionAn equinox is one of two moments each year when the Sun crosses the celestial equator, making day and night approximately equal...
Epicycle
DefinitionAn epicycle is a small circular path whose center travels around a larger circle, traditionally called the deferent. Ancient and medieval astronomers...
Equation of Time
DefinitionThe Equation of Time is the changing difference between apparent solar time, measured by the Sun’s observed position, and mean solar time,...
Era
DefinitionAn era is an extended span of history identified by shared cultural, political, technological, or symbolic characteristics. In astrology, the word may...
Dragon’s Head
DefinitionDragon's Head is a traditional name for the North Lunar Node, also called the ascending node. It is the mathematical point where...
Doryphory
DefinitionDoryphory, also called spear-bearing, is a condition in Hellenistic and later traditional astrology in which one or more planets serve as attendants...
