Editing Elongation (astronomy) (section)

==Of moons of other planets==

Sometimes '''elongation''' may instead refer to the angular distance of a moon of another planet from its central planet, for instance the angular distance of [[Io (moon)|Io]] from [[Jupiter]].  Here we can also talk about ''greatest eastern elongation'' and ''greatest western elongation''.  In the case of the moons of [[Uranus]], studies often deal with ''greatest northern elongation'' and ''greatest southern elongation'' instead, due to the very high inclination of Uranus' axis of rotation.