The student is shown a schematic of the Earth and another object in either a superior or inferior orbit and is asked to name various positions in the object's orbit (opposition, quadrature or conjunction for superior orbits, inferior/superior conjunction or greatest elongation for inferior orbits).
keywords: superior orbit, inferior orbit, opposition, quadrature, conjunction, inferior conjunction, superior conjunction, greatest elongation
swf file: ca_renaissance_elongationnames.swf