Astrology wiki
Explore wiki concepts, word origins, evidence and their connections to traditions and tools.
2 terms
Angular line →
Also: planetary angularity line
An astrocartography line marking locations where a selected planet rises, sets, culminates or reaches lower culmination at the reference instant.
Word origin, evidence & sources
Angular refers to chart angles; line names the plotted locus where a body meets a specified angular condition.
Each line joins locations satisfying one specified angular condition at a fixed instant. Rising and setting calculations depend on the adopted horizon model; line proximity is a geometric relationship, not a measured dose of planetary influence.
Great circle →
A circle dividing a sphere into equal halves; spherical local-space maps extend a planetary direction along such a path.
Word origin, evidence & sources
Great identifies the largest circle cut from a sphere: its plane passes through the sphere's center.
On a sphere, a great circle follows a plane through the center and can extend a chosen local direction. Antipodal points leave the route ambiguous without a bearing; the model also approximates Earth's actual ellipsoidal surface.