 Between November 27 , 2006 , and April 1 , 2007 , <unk> images of the star WASP @-@ 13 by the SuperWASP @-@ North program based at <unk> de los <unk> Observatory in the Canary Islands led to the identification of WASP @-@ 13 as host to a potentially transiting object . <unk> follow @-@ up observations were taken on February 16 , 2008 using the James Gregory Telescope ( JGT ) in Scotland , which took <unk> exposures of the star , although the last twenty images taken were obscured by cloud cover and were discarded . Using HD <unk> as a reference star along with JGT measurements , the astronomers investigating the system were able to create a light curve for the transiting planet . 
