Constellation of Eridan - Constellation of Eridanus - View from the Hyadas to the Hydra...

Constellation of Eridan - Constellation of Eridanus - View from the Hyadas to the Hydra Male. In the center is the great constellation of Eridan. The brightest stars visible here are Rigel, Sirius, Canopus and Achernar. In the center of image is the Eridanus constellation. Brightest stars visible are Rigel (top in Orion); Sirius (top left); Canopus (below) and Achernar (bottom center). Eridanus (the Celestial River) is very well named; since it winds its way over an enormous area of the sky. It is the 6th largest constellation (almost 1140 square degrees) and wanders over a huge range of Declination. The river runs from close to the celestial equator (which runs through Orion's Belt) to its brightest star Achernar (a Eri; from the English for 'river's end'); which is at 57* south declination