- Coiled around the sky’s north pole is the celestial dragon, Draco, known to the Greeks as Δράκων (i.e. Drakon). Legend has it that this is the dragon slain by Heracles during one of his labours, and in the sky the dragon is depicted with one foot of Heracles (in the form of the neighbouring constellation Hercules) planted firmly upon its head. This dragon, named Ladon, guarded the precious tree on which grew the golden apples.