On the other hand, celestial longitude and latitude are referred, not to the equator, but to the ecliptic.
celestial longitude is the distance of a body from the vernal equinox measured on the ecliptic.
| celestial longitude The position of a celestial object east of the vernal equinox along the ecliptic. Celestial longitude is measured in degrees eastward from the vernal equinox (0°) to the point where a great circle drawn through the object and the poles of the ecliptic intersects the ecliptic. Compare celestial latitude. See more at ecliptic coordinate system. |
