What is "eridanus"

Eridanus \E*rid"a*nus\, n. [L., fr. Gr. ?, the Greek name of the River Po.] (Anat.) A long, winding constellation extending southward from Taurus and containing the bright star Achernar.

The name “Eridanus” can refer to:

Eridanus is a constellation in the southern hemisphere. It is represented as a river. It was one of the 48 constellations listed by the 2nd century astronomer Ptolemy, and it remains one of the 88 modern constellations. It is the sixth largest of the modern constellations. The same name was later taken as a Latin name for the real Po River and also for the name of a minor river in Athens.

The modern constellation Eridanus lies across one of the quadrants symbolized by the The White Tiger of the West (西方白虎, Xī Fāng Bái Hǔ), and The Southern Asterisms (近南極星區, Jìnnánjíxīngōu), that divide the sky in traditional Chinese uranography.

According to the quadrant, it is possible that the constellation Eridanus is not fully visible. ''' Achernar ''' (Alpha Eridani) is bright star in this constellation that may have never been seen in Chinese skies.

The name of the western constellation in modern Chinese is 波江座 (bō jiāng zuò), meaning "the waving river constellation".