Zeus ordered Ganymede to be his cupbearer to replace Helen. However, Zeus’ wife Hera was jealous of Ganymede’s good looks and decided to trick him. One night, Hera let Helen go secretly because she knew that Helen would find Ganymede to elope. As it turned out, they were all captured by Hera. Zeus was angry about their behavior and determined to kill Ganymede. But when the archer Chiron tried to shoot Ganymede, Helen warded off the arrow with her body.
在冰冷的神殿，伊见不到家人也见不到海伦，他日渐憔悴。而宙斯却逼迫伊代替海伦为他倒水，这样他就可以天天见到这个美丽的男孩。宙斯的妻子女神赫拉是个嫉妒成性的女子，她看在眼里，怒在心头，她不仅嫉妒宙斯看伊时那样无耻的眼神，更嫉妒伊有着她都没有的美丽光华。于是赫拉心生毒计，决定加害这个无辜的王子。她偷偷将海伦放走，海伦自然要与伊私逃下界，这时她再当场将两人捉住。雅典娜明白这是赫拉的计谋，但也无能为力，被激怒的宙斯决定处死伊。然而，就在射手奇伦射出那致命一箭的刹那，侍女海伦挡在了伊的胸前！

Unable to have things her way, Hera was so angry that she transformed Ganymede as a clear cup to pour water for Zeus forever. This constellation is placed in the sky near other watery constellations including a dolphin (Delphinus), the sea monster (Cetus) and a fish (Pisces).
眼看奸计没能得逞，赫拉恼羞成怒之下，将伊变成了一只透明的水瓶，要他永生永世为宙斯倒水。然而，水瓶中倒出来的却是眼泪！众神无不为之动容，于是宙斯变将伊封在了天上，作一个忧伤的神灵。这个星座被安排在包含海豚座，鲸鱼座和双鱼座的水系星座附近的天空中。