Between November 27 , 2006 , and April 1 , 2007 , 3329 images of the star WASP @-@ 13 by the SuperWASP @-@ North program based at Roque de los Muchachos Observatory in the Canary Islands led to the identification of WASP @-@ 13 as host to a potentially transiting object . Photometric follow @-@ up observations was taken on February 16 , 2008 using the James Gregory Telescope ( JGT ) in Scotland , which took 1047 exposures of the star , although the last twenty images taken was obscured by cloud cover and was discarded . Using HD 80408 as a reference star along with JGT measurements , the astronomers investigating the system was able to create a light curve for the transiting planet .