Ancient Greek
Star Lore

Part 3

Centaurus

Although the name Centaurus or Centaur is somewhat generic, the constellation represents a very specific centaur named Chiron, the one that Homer called the "wisest and justest of all the centaurs." in the Iliad.

Wikipedia tells us, that in Greek mythology, "... Centaurs were notorious for being wild, lusty, overly indulgent drinkers and carousers, violent when intoxicated, and generally uncultured delinquents. Chiron, by contrast, was intelligent, civilized and kind, because he was not related directly to the other centaurs due to his parentage. He was the son of the Titan Cronus and the Oceanid Philyra."

Ian Ridpath adds to the story, that "...Cronus ... one day caught and seduced the sea nymph Philyra. Surprised in the act by his wife Rhea, Cronus turned himself into a horse and galloped away, leaving Philyra to bear a hybrid son.

Chiron grew up to be a skilled teacher of hunting, medicine, and music; his cave on Mount Pelion in eastern Greece became a veritable academy for young princes in search of a good education. Chiron was so trusted by the gods and heroes of ancient Greece that he was made foster-father to Jason (of Argonauts fame) and Achilles; but perhaps his most successful pupil was Asclepius, son of Apollo, who became the greatest of all healers and is commemorated in the constellation Ophiuchus."

In the end, however, Chiron died a tragic and unfortunate death, but even in death, he displayed the greatness of his character. There are several variants of the story of Chiron's death. They all have in common that Chiron was accidentally wounded by his friend and student Heracles with one of the arrows that that had been treated with the blood of the Hydra.

For mortals, these arrows meant instant death; for the immortal son of a Titan, it meant agonizing pain for eternity. Chiron therefore decided to give up his immortality and ask Heracles to negotiate a trade with his half brother Zeus: His life for the life of Prometheus.

Zeus grudgingly agreed and after Chiron's death, he placed the noble centaur in the sky.

In Greek mythology, Prometheus was the titan who is credited with the creation of humanity from clay, and who defies the gods by stealing fire and giving it to humanity. For this act, he was punished by Zeus and chained to the Caucasus Mountains for eternity.

Prometheus is arguably the most famous Greek hero who did NOT receive his own star or constellation. It took 2000 years, until humanity honored the fire-bringer with a place in the skies. In 1960, a small rock with approximately 14 kilometers in diameter in the outer region of the asteroid belt was named Prometheus. In 1985, one of the inner moons of Saturn, discovered during the Cassini mission also was named Prometheus.

Sources:Wikipedia, Ian Ridpath, Chandra Observatory

Chiron, Peleus and infant Achilles
from Hutchinson, A book of Greek fairy tales, 1914
Source: Wikipedia

The Education of Achilles by Chiron
fresco from Herculaneum, 1st century AD
Source: Wikipedia

Heracles frees Prometheus
by Carl Bloch (1834–1890)
Source: greeklegendsandmyths.com



Crux

Ptolemy did his observations in one of the southernmost spots of the antique world - Alexandria. From there, he very well observed the stars of the Cross, but considered them only an asterism, forming a part of the hind legs of Centaurus.

By 400 AD, due to the effects of precession, the Cross drifted out of view from anywhere in Europe or the Mediterranean. It would take 1,400 years, before European sailors would spot it again.

Source:Ian Ridpath, Wikipedia

Ptolemy in the Alexandria Observatory
Source: sciencephoto.com


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