Twin City Amateur Astronomers
All Constellations


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Eridanus is a large constellation that extends from the west of Orion down to the east of Phoenix, a span of nearly 60°. Except for the brightest star Achernar at the bottom of the Eridanus, none of the other stars in the constellation are brighter then 3rd magnitude. Eridanus is often said to be the river into which Phaeton was thrown during his disastrous attempt to drive the Chariot of the Sun like his father Apollo. During the attempt, from which Apollo tried to dissuade him, Phaeton lost control of the chariot and the Sun came near to Earth and caused a great conflagration. Earth itself appealed to Jupiter for relief and Jupiter sent his thunderbolts to dislodge Phaeton from the chariot and he fell into the Eridanus.