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Linea ecliptica
From Wikipedia, the free encyclopedia
Linea ecliptica (lingua Graeca antiqua) ἔκλειψις ékleipsis[1] est illa linea in caelo qua sol sicut visus est a tellure planeta semel per annum caelum circumire videtur. Quod tellus semel per annum circum solem currit, apparet in caelo ut visum est a tellure, tamquam sol inter stellas fixas in linea ecliptica migraret zodiacum percurrens.
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Linea ecliptica est circulus magnus in sphaera caelesti quo planities eclipticae determinatur. Obliquitas ecliptica est angulus inter planitiem eclipticae et planitiem aequatorialem. Haec linea aequatoriale determinatur.