
Draco is the eighth largest constellation in the sky. Occupying an area of 1038 square degrees, it is home to nine stars and one Messier object. Draco represents Ladon in Greek mythology, the guardian in the gardens of Hesperides. Gamma Draconis, Etamin, is the brightest star in the constellation. It is sometimes known as the “Zenith Star” as it lies close to the zenith point directly overhead in London. The star’s traditional name comes from the Arabic At-Tinnin meaning “the great serpent.”

Hercules is found in the third quadrant of the northern sky, occupying an area of 1225 square degrees. But despite being the fifth largest constellation, it does not have a first magnitude star. The Keystone asterism contains four bright stars, which represent Hercules’ torso. Zeta Herculis, the brightest among the four, is only 35 light years distant from Earth. Beta Herculis, Kornephoros, is the brightest star in the Hercules constellation. Its name comes from Greek and means “the club bearer.”
The constellation dates back to ancient times. Its origin was unclear even to the Greeks. They knew it as Engonasin, or “the kneeling one.” It was Eratosthenes who identified the kneeler as Heracles, standing over the dragon that guards the golden apples.
Heracles was the son of Zeus and Alcmene, a mortal woman. When he was an infant, Zeus laid him at Hera’s breast while she slept to suckle her milk, which made him immortal. Enraged by this and her husband’s infidelity, the goddess made Heracles’ life difficult. She cast a spell that made him go insane and kill his children. Once he regained his senses, he visited the Oracle at Delphi to see how he could atone for his deed.
The Oracle sent him to serve Eurystheus of Mycenae for a period of 12 years. King Eurystheus gave Heracles a series of tasks, known as the Labours of Heracles. The tasks ranged from cleaning stables to killing creatures. Despite finishing all ten, the king refused to release him from service. Eurystheus gave two more tasks for Heracles to do.
The golden apple tree was a present to Hera when she got married to Zeus. It was planted on Mount Atlas and guarded by Atlas’ daughters, the Hesperides. The goddess also placed the dragon Ladon so that the Hesperides would not get from the tree. Heracles’ first additional task was to steal golden apples from her garden. He killed Ladon with his poisoned arrows and took the apples. Saddened by the dragon’s death, Hera placed its image in the sky among the constellations. And so, in the northern sky, the constellation Draco is found.




