celestial longitude (redirected from celestial longitudes)

celestial longitude [sə′les·chəl ′län·jə‚tüd]

(astronomy)

Angular distance east of the vernal equinox, along the ecliptic; the arc of the ecliptic or the angle at the ecliptic pole between the circle of latitude of the vernal equinox and the circle of latitude of a point on the celestial sphere, measured eastward from the circle of latitude of the vernal equinox, through 360°. Also known as ecliptic longitude.