Stel is a fictional American comic book superhero, an extraterrestrial robot from the planet Grenda and a member of the intergalactic police force known as the Green Lantern Corps for space sector 3009. He first appeared in DC Comics` Green Lantern (vol. 2) #11 (March 1962), and was created by writer John Broome and artist Gil Kane. ==Fictional c.... Found on http://en.wikipedia.org/wiki/Stel