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Eridanus
(redirected from Eridanos)

   Also found in: Wikipedia, Hutchinson 0.04 sec.
Eridanus (ĭrĭd`ənəs), large southern constellation constellation, in common usage, group of stars that appear to form a configuration in the sky; properly speaking, a constellation is a definite region of the sky in which the configuration of stars is contained.
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 stretching SW from Orion for about 60°. Because of its long, winding shape it was identified with a river by many ancient civilizations; e.g., the Egyptians called it the Nile and the Babylonians called it the Euphrates. The brightest star in the constellation, Achernar Achernar (ā`kərnär'), brightest star in the constellation Eridanus ; Bayer designation α Eridani; 1992 position R.A.
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, marks the southern end of the river. Eridanus reaches its highest point in the evening sky in December.
Eridanus [‚er·ə′dan·əs]
(astronomy)
A southern constellation made up of a long, crooked line of stars beginning near Rigel in the foot of Orion, and winding west and south to the first-magnitude star Achernar. Abbreviated Eri; Erid. Also known as River Po.


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